Billion Electric Company BiGuard 50G Network Card User Manual

Billion Electric Company BiGuard 50G Network Card User Manual

BiGuard 50G

802.11g Dual WAN Security

Gateway

User’s Manual

Version Release 1.03 (FW:1.xx)

BiGuard 50G User’s Manual

(Updated September, 2007)

Copyright Information

© 2007 Billion Electric Corporation, Ltd.

The contents of this publication may not be reproduced in whole or in part, transcribed, stored, translated, or transmitted in any form or any means, without the prior written consent of Billion Electric Corporation.

Published by Billion Electric Corporation. All rights reserved.

Disclaimer

Billion does not assume any liability arising out of the application of use of any products or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. Billion reserves the right to make changes in any products described herein without notice. This publication is subject to change without notice.

Trademarks

Mac OS is a registered trademark of Apple Computer, Inc.

Windows 98, Windows NT, Windows 2000, Windows Me and Windows XP are registered trademarks of Microsoft Corporation.

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Safety Warnings

Your BiGuard 50G is built for reliability and long service life. For your safety, be sure to read and follow the following safety warnings.

• Read this installation guide thoroughly before attempting to set up your BiGuard

50G.

• Your BiGuard 50G is a complex electronic device. DO NOT open or attempt to repair it yourself. Opening or removing the covers can expose you to high voltage and other risks. In the case of malfunction, turn off the power immediately and have it repaired at a qualified service center. Contact your vendor for details.

• Connect the power cord to the correct supply voltage.

• Carefully place connecting cables to avoid people from stepping or tripping on them. DO NOT allow anything to rest on the power cord and DO NOT place the power cord in an area where it can be stepped on.

• DO NOT use BiGuard 50G in environments with high humidity or high temperatures.

• DO NOT use the same power source for BiGuard 50G as other equipment.

• DO NOT use your BiGuard 50G and any accessories outdoors.

• If you wall mount your BiGuard 50G, make sure that no electrical, water or gas pipes will be damaged during installation.

• DO NOT install or use your BiGuard 50G during a thunderstorm.

• DO NOT expose your BiGuard 50G to dampness, dust, or corrosive liquids.

• DO NOT use your BiGuard 50G near water.

• Be sure to connect the cables to the correct ports.

• DO NOT obstruct the ventilation slots on your BiGuard 50G or expose it to direct sunlight or other heat sources. Excessive temperatures may damage your device.

• DO NOT store anything on top of your BiGuard 50G.

• Only connect suitable accessories to your BiGuard 50G.

• Keep packaging out of the reach of children.

• If disposing of the device, please follow your local regulations for the safe disposal of electronic products to protect the environment.

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Table of Contents

Chapter 1: Introduction

1.1 Overview

1.2 Product Highlights

1.2.1 Increased Bandwidth, Scalability and Resilience

1.2.2 Virtual Private Network Support

1.2.3 Advanced Firewall Security

1.2.4 Intelligent Bandwidth Management

1.3 Package Contents

1.3.1 Front Panel

1.3.2 Rear Panel

1.3.3 Cabling

Chapter 2: Router Applications

2.1 Overview

2.2 Bandwidth Management with QoS

2.2.1 QoS Technology

2.2.2 QoS Policies for Different Applications

2.2.3 Guaranteed / Maximum Bandwidth

2.2.4 Policy Based Traffic Shaping

2.2.5 Priority Bandwidth Utilization

2.2.6 Management by IP or MAC address

2.2.7 DiffServ (DSCP Marking)

2.2.7 DSCP (Matching)

2.3 Outbound Traffic

2.3.1 Outbound Fail Over

2.3.2 Outbound Load Balancing

2.4 Inbound Traffic

2.4.1 Inbound Fail Over

2.4.2 Inbound Load Balancing

2.5 DNS Inbound

2.5.1 DNS Inbound Fail Over

2.5.2 DNS Inbound Load Balancing

2.6 Virtual Private Networking

2.6.1 General VPN Setup

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2.6.2 VPN Planning - Fail Over

2.6.3 Concentrator

Chapter 3: Getting Started

3.1 Overview

3.2 Before You Begin

3.3 Connecting Your Router

3.4 Configuring PCs for TCP/IP Networking

3.4.1 Overview

3.4.2 Windows XP

3.4.2.1 Configuring

3.4.2.2 Verifying Settings

3.4.3 Windows 2000

3.4.3.1 Configuring

3.4.3.2 Verifying Settings

3.4.4 Windows 98 / ME

3.4.4.1 Installing Components

3.4.4.2 Configuring

3.4.4.3 Verifying Settings

3.5 Factory Default Settings

3.5.1 Username and Password

3.5.2 LAN and WAN Port Addresses

3.6 Information From Your ISP

3.6.1 Protocols

3.6.2 Configuration Information

3.6.2.1 Windows

3.7 Web Configuration Interface

Chapter 4: Router Configuration

4.1 Overview

4.2 Status

4.2.1 ARP Table

4.2.2 Wireless Association

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4.2.3 Routing Table

4.2.5 DHCP Table

4.2.6 IPSec Status

4.2.8 Traffic Statistics

4.2.9 CPU Statistics

4.2.10 System Log

4.3 Quick Start

4.3.1 DHCP

4.3.2 Static IP

4.3.3 PPPoE

4.3.4 PPTP

4.3.5 Big Pond

4.4 Configuration

4.4.1 LAN

4.4.1.1 Ethernet

4.4.1.2 Wireless Security

4.4.1.3 WEP

4.4.1.4 DHCP Server

4.4.1.5 LAN Address Mapping

4.4.2 WAN

4.4.2.1 ISP Settings

4.4.2.1.1 DHCP

4.4.2.1.2 Static IP

4.4.2.1.3 PPPoE

4.4.2.1.4 PPTP

4.4.2.1.5 Big Pond

4.4.2.2 Bandwidth Settings

4.4.2.3 WAN IP Alias

4.4.3 Dual WAN

4.4.3.1 General Settings

4.4.3.2 Outbound Load Balance

4.4.3.3 Inbound Load Balance

4.4.3.4 Protocol Binding

4.4.4 System

4.4.4.1 Time Zone

4.4.4.2 Remote Access

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4.4.4.3 Firmware Upgrade

4.4.4.4 Backup / Restore

4.4.4.5 Restart

4.4.4.6 Password

4.4.5 Firewall

4.4.5.1 Packet Filter

4.4.5.2 URL Filter

4.4.5.3 Ethernet MAC Filter

4.4.5.4 Wireless MAC Filter

4.4.5.5 Block WAN Request

4.4.5.6 Intrusion Detection

4.4.6 VPN

4.4.6.1 IPSec

4.4.6.1.1 IPSec Wizard

4.4.6.1.2 IPSec Policy

4.4.6.2 PPTP

4.4.7 QoS

4.4.8 Virtual Server

4.4.8.1 DMZ

4.4.8.2 Port Forwarding Table

4.4.9 Advanced

4.4.9.1 Static Route

4.4.9.2 Dynamic DNS

4.4.9.3 Device Management

5 Log & Email Alert

5.1 Log Configuration

5.2 System Log Server

5.3 E-Mail Alert

6 Language

6.1 English

6.2 Simplified Chinese

6.3 Traditional Chinese

7 Save Configuration To Flash

8 Logout

Chapter 5: Troubleshooting

5.1 Basic Functionality

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5.1.1 Router Won’t Turn On

5.1.2 LEDs Never Turn Off

5.1.3 LAN or Internet Port Not On

5.1.4 Forgot My Password

5.2 LAN Interface

5.2.1 Can’t Access Router from the LAN

5.2.2 Can’t Ping Any PC on the LAN

5.2.3 Can’t Access Web Configuration Interface

5.2.3.1 Pop-up Windows

5.2.3.2 Javascripts

5.2.3.3 Java Permissions

5.3 WAN Interface

5.3.1 Can’t Get WAN IP Address from the ISP

5.4 ISP Connection

5.5 Problems with Date and Time

5.6 Restoring Factory Defaults

Appendix A: Product Specifications

Appendix B: Customer Support

Appendix C: FCC Interference Statement

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Appendix D: Network, Routing, and Firewall Basics

D.1 Network Basics

D.1.1 IP Addresses

D.1.1.1 Netmask

D.1.1.2 Subnet Addressing

D.1.1.3 Private IP Addresses

D.1.2 Network Address Translation (NAT)

D.1.3 Dynamic Host Configuration Protocol (DHCP)

D.2 Router Basics

D.2.1 Why use a Router?

D.2.2 What is a Router?

D.2.3 Routing Information Protocol (RIP)

D.3 Firewall Basics

D.3.1 What is a Firewall?

D.3.2.1 Stateful Packet Inspection

D.3.2.2 Denial of Service (DoS) Attack

D.3.2 Why Use a Firewall?

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Appendix E: Virtual Private Networking

E.1 What is a VPN?

E.1.1 VPN Applications

E.2 What is IPSec?

E.2.1 IPSec Security Components

E.2.1.1 Authentication Header (AH)

E.2.1.2 Encapsulating Security Payload (ESP)

E.2.1.3 Security Associations (SA)

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E.2.2 IPSec Mod

E.2.3 Tunnel Mode AH

E.2.4 Tunnel Mode ESP

E.2.5 Internet Key Exchange (IKE)

Appendix F: IPSec Logs and Events

F.1 IPSec Log Event Categories

F.2 IPSec Log Event Table

Appendix G: Bandwidth Management with QoS

G.1 Overview

G.2 What is Quality of Service?

G.3 How Does QoS Work?

G.4 Who Needs QoS?

G.4.1 Home Users

G.4.2 Office Users

Appendix H: Router Setup Examples

H.1 Outbound Fail Over

H.2 Outbound Load Balancing

H.3 Inbound Fail Over

H.4 DNS Inbound Fail Over

H.5 DNS Inbound Load Balancing

H.6 Dynamic DNS Inbound Load Balancing

H.7 VPN Configuration

H.7.1 LAN to LAN

H.7.2 Host to LAN

H.8 IPSec Fail Over (Gateway to Gateway)

H.9 VPN Concentrator

H.10 Protocol Binding

H.11 Intrusion Detection

H.12 PPTP Remote Access by Windows XP

H.13 PPTP Remote Access by BiGuard

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Chapter 1: Introduction

1.1 Overview

Congratulations on purchasing BiGuard 50G Router from Billion. Combining a router with an Ethernet network switch, BiGuard 50G is a state-of-the-art device that provides everything you need to get your network connected to the Internet over your Cable or DSL connection quickly and easily. The Quick Start Wizard and DHCP

Server will get first-time users up and running with minimal fuss and configuration, while sophisticated Quality of Service (QoS) and Load Balancing features grant advanced users total control over their network and Internet connection.

This manual illustrates the many features and functions of BiGuard 50G, and even takes you through the various ways you can apply this versatile device to your home or office. Take the time now to familiarize yourself with BiGuard 50G.

1.2 Product Highlights

1.2.1 Increased Bandwidth, Scalability and Resilience

With integrated Dual WAN ports, BiGuard 50G combines two broadband lines such as DSL or Cable into one Internet connection, providing optimal bandwidth sharing for multiple PCs on your network, or allowing maximum reliability with network redundancy. Load Balancing enables BiGuard 50G to efficiently balance network traffic across two connections, ideal for small-to-medium businesses that require increased bandwidth, network scalability, and resilience for mission-critical network and Internet applications. Auto failover can also be configured to ensure smooth, continuous service should one connection fail, providing maximum business uptime and productivity, plus uninterrupted service for you and your customers.

1.2.2 Virtual Private Network Support

BiGuard 50G supports comprehensive IPSec & PPTP VPN protocols for businesses to establish private encrypted tunnels over the Internet to ensure data transmission security among multiple sites, such as a branch office or dial-up connection. IPSec

VPN is up to 30 simultaneous IPSec VPN connections are possible on BiGuard 50G, with performance of up to 30Mbps. PPTP VPN is up to 4 simultaneous PPTP VPN

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connections are possible on BiGuard 50G, with performance of up to 10Mbps.

1.2.3 Advanced Firewall Security

Aside from intelligent broadband sharing, BiGuard 50G offers integrated firewall protection with advanced features to secure your network from outside attacks.

Stateful Packet Inspection (SPI) determines if a data packet is permitted to enter the private LAN. Denial of Service (DoS) prevents hackers from interrupting network services via malicious attacks. In addition, BiGuard 50G firewall can be configured to alert you via email should your network come under fire, offering both tight network security and peace of mind.

1.2.4 Intelligent Bandwidth Management

BiGuard 50G utilizes Quality of Service (QoS) to give you full control over the priority of both incoming and outgoing data, ensuring that critical data such as customer information moves through your network, even while under a heavy load.

Transmission speeds can be throttled to make sure users are not saturating bandwidth required for mission-critical data transfers. Priority types of upload data can also be changed, allowing BiGuard 50G to automatically sort out actual speeds for unmatched convenience.

1.3 Package Contents

BiGuard 50G iBusiness Security Gateway SMB

Getting Started CD-ROM

Quick Start Guide

AC-DC Power Adapter (12VDC, 1A)

1.3.1 Front Panel

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LED Function

Power

A solid light indicates a steady connection to a power source.

Status

A blinking light indicates the device is writing to flash memory.

LAN

1 – 4

Lit when connected to an Ethernet device.

10/100M :

Lit green when connected at 100Mbps.

Not lit when connected at 10Mbps.

Link/ACT:

Lit when device is connected.

Blinking when data is transmitting/receiving.

WAN1

Lit when connected to an Ethernet device.

10/100M :

Lit green when connected at 100Mbps.

Not lit when connected at 10Mbps.

Link/ACT:

Lit when device is connected.

Blinking when data is transmitting/receiving.

WAN2

Lit when connected to an Ethernet device.

10/100M :

Lit green when connected at 100Mbps.

Not lit when connected at 10Mbps.

Link/ACT:

Lit when device is connected.

Blinking when data is transmitting/receiving.

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1.3.2 Rear Panel

6

Port Function

1

Wireless

Antenna

One detachable 2.4GHz 5dbi SMA antenna

WAN2 10/100M Ethernet port (with auto

2 WAN2 crossover support); connect xDSL/Cable modem here.

WAN1 10/100M Ethernet port (with auto

3 WAN1 crossover support); connect xDSL/Cable modem here.

4

LAN

1 — 4

Connect a UTP Ethernet cable (Cat-5 or

Cat-5e) to one of the eight LAN ports when connecting a PC to the network.

To reset the device and restore factory

5 RESET default settings, after the device is fully booted, press and hold RESET until the

Status LED begins to blink.

DC12V Connect DC Power Adapter here. (12VDC)

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1.3.4 Cabling

Most Ethernet networks currently use unshielded twisted pair (UTP) cabling. The

UTP cable contains eight conductors, arranged in four twisted pairs, and terminated with an RJ45 type connector.

One of the most common causes of networking problems is bad cabling. Make sure that all connected devices are turned on. On the front panel of BiGuard 50G, verify that the LAN link and WAN line LEDs are lit. If they are not, check to see that you are using the proper cabling.

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Chapter 2: Router Applications

2.1 Overview

Your BiGuard 50G router is a versatile device that can be configured to not only protect your network from malicious attackers, but also ensure optimal usage of available bandwidth with Quality of Service (QoS) and both Inbound and Outbound

Load Balancing. Alternatively, BiGuard 50G can also be set to redirect incoming and outgoing network traffic with the Fail Over capability, ensuring minimal downtime and increased reliability.

The following chapter describes how BiGuard 50G can work for you.

2.2 Bandwidth Management with QoS

Quality of Service (QoS) gives you full control over which types of outgoing data traffic should be given priority by the router. By doing so, the router can ensure that latency-sensitive applications like voice, bandwidth-consuming data like gaming packets, or even mission critical files efficiently move through the router even under a heavy load. You can throttle the speed at which different types of outgoing data pass through the router. In addition, you can simply change the priority of different types of upload data and let the router sort out the actual speeds.

2.2.1 QoS Technology

QoS generally involves the prioritization of network traffic. QoS is comprised of three major components: Classifier, Meter, and Scheduler. Each of these components has a distinct role in ensuring that incoming and outgoing data is managed according to user specifications.

The Classifier analyses incoming packets and marks each one according to configured parameters. The Meter communicates the drop priority to the Scheduler and measures the temporal priorities of the output stream against configured parameters. Finally, the Scheduler schedules each packet for transmission based on information from both the Classifier and the Meter.

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2.2.2 QoS Policies for Different Applications

By setting different QoS policies according to the applications you are running, you can use BiGuard 50G to optimize the bandwidth that is being used on your network.

VoIP

Normal PCs

Restricted PC

As illustrated in the diagram above, applications such as Voiceover IP (VoIP) require low network latencies to function properly. If bandwidth is being used by other

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applications such as an FTP server, users using VoIP will experience network lag and/or service interruptions during use. To avoid this scenario, this network has assigned VoIP with a guaranteed bandwidth and higher priority to ensure smooth communications. The FTP server, on the other hand, has been given a maximum bandwidth cap to make sure that regular service to both VoIP and normal Internet applications is uninterrupted.

2.2.3 Guaranteed / Maximum Bandwidth

Setting a Guaranteed Bandwidth ensures that a particular service receives a minimum percentage of bandwidth. For example, you can configure BiGuard 50G to reserve 10% of the available bandwidth for a particular computer on the network to transfer files.

Alternatively you can set a Maximum Bandwidth to restrict a particular application to a fixed percentage of the total throughput. Setting a Maximum Bandwidth of 20% for a file sharing program will ensure that no more than 20% of the available bandwidth will be used for file sharing.

2.2.4 Policy Based Traffic Shaping

Policy Based Traffic Shaping allows you to apply specific traffic policies across a range of IP addresses or ports. This is particularly useful for assigning different policies for different PCs on the network. Policy based traffic shaping lets you better

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manage your bandwidth, providing reliable Internet and network service to your organization.

2.2.5 Priority Bandwidth Utilization

Assigning priority to a certain service allows BiGuard 50G to give either a higher or lower priority to traffic from this particular service. Assigning a higher priority to an application ensures that it is processed ahead of applications with a lower priority and vice versa.

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2.2.6 Management by IP or MAC address

BiGuard 50G can also be configured to apply traffic policies based on a particular IP or MAC address. This allows you to quickly assign different traffic policies to a specific computer on the network.

DiffServ (DSCP Marking)

DiffServ (a.k.a. DSCP Marking) allows you to classify traffic based on IP DSCP values.

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Other interfaces can match traffic based on the DSCP markings. DSCP markings are used to decide how packets should be treated, and is a useful tool to give precedence to varying types of data.

2.2.8 DSCP (Matching)

Just like the DSCP Marking, DSCP is used on traffics (Both inbound rules and outbound rules have DSCP matching). DSCP matching is used to identify traffic for the rule. (It is just like what source IP and destination IP do). When this option of the

QoS rule is selected, the QoS rule will only be applied to the packets whose DSCP field’s IP header matches the criteria selected. These markings can be used to identify traffic within the network.

2.3 Outbound Traffic

This section outlines some of the ways you can use BiGuard 50G to manage outbound traffic.

2.3.1 Outbound Fail Over

Configuring BiGuard 50G for Outbound Fail Over allows you to ensure that outgoing traffic is uninterrupted by having BiGuard 50G default to WAN2 should WAN1 fail.

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In the above example, PC 1 (IP_192.168.2.2) and PC 2 (IP_192.168.2.3) are connected to the Internet via WAN1 (IP_230.100.100.1) on BiGuard 50G. Should

WAN1 fail, Outbound Fail Over tells BiGuard 50G to reroute outgoing traffic to WAN2

(IP_213.10.10.2). Configuring your BiGuard 50G for Outbound Fail Over provides a more reliable connection for your outgoing traffic.

Please refer to appendix H for example settings.

2.3.2 Outbound Load Balancing

Outbound Load Balancing allows BiGuard 50G to intelligently manage outbound traffic based on the amount of load of each WAN connection.

In the above example, PC 1 (IP_192.168.2.2) and PC 2 (IP_192.168.2.3) are

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connected to the Internet via WAN1 (IP_230.100.100.1) and WAN2

(IP_213.10.10.2) on BiGuard 50G. You can configure BiGuard 50G to balance the load of each WAN port with one of two mechanisms:

1. Session (by session/by traffic/weight of link capability)

2. IP Hash (by traffic/weight of link capability)

The IP Hash mechanism will ensure that the traffic from the same source IP address and destination IP address will go through the same WAN port. This is useful for some server applications that need to identify the source IP address of the client.

By balancing the load between WAN1 and WAN2, your BiGuard 50G can ensure that outbound traffic is efficiently handled by making sure that both ports are equally sharing the load, preventing situations where one port is completely saturated by outbound traffic.

Please refer to appendix H for example settings.

2.4 Inbound Traffic

Learn how BiGuard 50G can handle inbound traffic in the following section.

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2.4.1 Inbound Fail Over

Configuring BiGuard 50G for Inbound Fail Over allows you to ensure that incoming traffic is uninterrupted by having BiGuard 50G default to WAN2 should WAN1 fail.

In the above example, an FTP Server (IP_192.168.2.2) and an HTTP Server

(IP_192.168.2.3) are connected to the Internet via WAN1 (ftp.billion.dyndns.org) on BiGuard 50G. A remote computer is trying to access these servers via the

Internet. Under normal circumstances, the remote computer will gain access to the network via WAN1. Should WAN1 fail, Inbound Fail Over tells BiGuard 50G to reroute incoming traffic to WAN2 by using the Dynamic DNS mechanism.

Configuring your BiGuard 50G for Inbound Fail Over provides a more reliable connection for your incoming traffic.

Please refer to appendix H for example settings.

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2.4.2 Inbound Load Balancing

Inbound Load Balancing allows BiGuard 50G to intelligently manage inbound traffic based on the amount of load of each WAN connection.

In the above example, an FTP server (IP_192.168.2.2) and an HTTP server

(IP_192.168.2.3) are connected to the Internet via WAN1

(www.billion2.dyndns.org) and WAN2 (www.billion3.dyndns.org) on BiGuard 50G.

Remote PCs are attempting to access the servers via the Internet. Using Inbound

Load Balancing, BiGuard 50G can direct incoming requests to the correct WAN port based on group assignment. For example, a sales force can be directed to www.billion2.dyndns.org, while the R&D group can access www.billion3.dyndns.org.

By balancing the load between WAN1 and WAN2, your BiGuard 50G can ensure that inbound traffic is efficiently handled with both ports equally sharing the load, preventing situations where service is slow because one port is completely saturated by inbound traffic.

Please refer to appendix H for example settings.

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2.5 DNS Inbound

Using DNS Inbound is a great way to intelligently direct network traffic.

DNS Inbound is a three step process. First, a DNS request is made to the router via a remote PC. BiGuard 50G, based on settings specified by the user, will direct the requesting PC to the correct WAN port by replying the selected WAN IP address through the built-in DNS server. The remote PC then accesses the network via the specified WAN port. How BiGuard 50G directs this traffic through the built-in DNS server depends on whether it is configured for Fail Over or Load Balancing.

Learn how to make DNS Inbound on BiGuard 50G work for you in the following section.

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2.5.1 DNS Inbound Fail Over

BiGuard 50G can be configured to reply the WAN2 IP address for the DNS domain name request should WAN1 fail.

In the above example, an FTP Server (IP_192.168.2.2) and an HTTP Server

(IP_192.168.2.3) are connected to the Internet via WAN1 (IP_200.200.200.1) on

BiGuard 50G. A remote computer is trying to access these servers via the Internet, and makes a DNS request. The DNS request ( www.mydomain.com

) will be sent through WAN1 (200.200.200.1) to the built-in DNS server. The DNS server will reply

200.200.200.1 because this is the only active WAN port. Should WAN1 fail, BiGuard

50G will instead reply with WAN2’s IP address (100.100.100.1), and the remote PC will gain access to the network via WAN2. By configuring BiGuard 50G for DNS

Inbound Fail Over, incoming requests will enjoy increased reliability when accessing your network.

Please refer to appendix H for example settings.

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2.5.2 DNS Inbound Load Balancing

DNS Inbound Load Balancing allows BiGuard 50G to intelligently manage inbound traffic based on the amount of load of each WAN connection by assigning the IP address with the lowest traffic load to incoming requests.

In the above example, an FTP server (IP_192.168.2.2) and an HTTP server

(IP_192.168.2.3) are connected to the Internet via WAN1 (IP_200.200.200.1) and

WAN2 (IP_100.100.100.1) on BiGuard 50G. Remote PCs are attempting to access the servers via the Internet by making a DNS request, entering a URL

(www.mydomain.com). Using a load balancing algorithm, BiGuard 50G can direct incoming requests to either WAN port based on the amount of load each WAN port is currently experiencing. If WAN2 is experiencing a heavy load, BiGuard 50G responds to incoming DNS requests with WAN1. By balancing the load between

WAN1 and WAN2, your BiGuard 50G can ensure that inbound traffic is efficiently handled, making sure that both ports are equally sharing the load and preventing situations where service is slow because one port is completely saturated by inbound traffic.

Please refer to appendix H for example settings.

A typical scenario of how traffic is directed with DNS Inbound Load Balancing is illustrated below:

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11

HTTP Reply

6 HTTP Request

10

WAN 1

7

URL Host Map

DNS Server

2

5 DNS Reply

1

DNS Request

WAN 2

4

3

Bandwidth Monitor

9 8

HTTP Server

In the example above, the client is making a DNS request. The request is sent to the

DNS server of BiGuard 50G through WAN2 (1). WAN2 will route this request to the embedded DNS server of BiGuard 50G (2). BiGuard 50G will analyze the bandwidth of both WAN1 and WAN2 and decide which WAN IP to reply to the request (3). After the decision is made, BiGuard 50G will route the DNS reply to the user through

WAN2 (4). The user will receive the DNS reply with the IP address of WAN1 (5). The browser will initiate an HTTP request to the WAN1 IP address (6). The HTTP request will be send to BiGuard 50G’s URL Host Map (7). The Host Map will then redirect the

HTTP request to the HTTP server (8). The HTTP server will reply (9). The URL Host

Map will route the packet through WAN1 to the user (10). Finally, the client will receive an HTTP reply packet (11).

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2.6 Virtual Private Networking

A Virtual Private Network (VPN) enables you to send data between two computers across a shared or public network in a manner that emulates the properties of a point-to-point private link. As such, it is perfect for connecting branch offices to headquarters across the Internet in a secure fashion.

The following section discusses Virtual Private Networking with BiGuard 50G.

2.6.1 General VPN Setup

There are typically three different VPN scenarios. The first is a Gateway to

Gateway setup, where two remote gateways communicate over the Internet via a secure tunnel.

The next type of VPN setup is the Gateway to Multiple Gateway setup, where one gateway (Headquarters) is communicating with multiple gateways (Branch Offices) over the Internet. As with all VPNs, data is kept secure with secure tunnels.

The final type of VPN setup is the Client to Gateway. A good example of where this can be applied is when a remote sales person accesses the corporate network over a secure VPN tunnel.

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VPN provides a flexible, cost-efficient, and reliable way for companies of all sizes to stay connected. One of the most important steps in setting up a VPN is proper planning. The following sections demonstrate the various ways of using BiGuard

50G to setup your VPN.

2.6.2 VPN Planning - Fail Over

Configuring your VPN with Fail Over allows BiGuard 50G to automatically default to

WAN2 should WAN1 fail.

Because the dynamic domain name biguard.billion.com is configured for both WAN1 and WAN2, the active WAN port will announce the domain name through the WAN IP address. The remote gateway will then be able to connect to the VPN through the domain name.

In this Gateway to Gateway example, BiGuard 50G is communicating to a remote

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gateway using WAN1 through a secure VPN tunnel. Should WAN1 fail, outbound traffic from BiGuard 50G will automatically be redirected to WAN2. This process is completely transparent to the remote gateway, as BiGuard 50G will automatically update the domain name (biguard.billion.com) with the WAN2 IP address.

Configuring a Gateway to Multiple Gateway setup with Fail Over is similar, as shown below:

Configuring BiGuard 50G for Fail Over provides added reliability to your VPN.

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2.6.3 Concentrator

The VPN Concentrator provides an easy way for branch offices to connect to headquarter through a VPN tunnel. All branch office traffic will be redirected to the

VPN tunnel to headquarter with the exception of LAN-side traffic. This way, all branch offices can connect to each other through headquarter via the headquarter’s firewall management. You can also configure BiGuard 50G to function as a VPN

Concentrator:

Please refer to appendix H for example settings.

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Chapter 3: Getting Started

3.1 Overview

BiGuard 50G is designed to be a powerful and flexible network device that is also easy to use. With an intuitive web-based configuration, BiGuard 50G allows you to administer your network via virtually any Java-enabled web browser and is fully compatible with Linux, Mac OS, and Windows 98/Me/NT/2000/XP operating systems.

The following chapter takes you through the very first steps to configuring your network for BiGuard 50G. Take a look and see how easy it is to get your network up and running.

3.2 Before You Begin

BiGuard 50G is a flexible and powerful networking device. To simplify the configuration process and increase the efficiency of your network, consider the following items before setting up your network for the first time:

1. Plan your network

Decide whether you are going to use one or both WAN ports. For one WAN port, you may need a fully qualified domain name either for convenience or if you have a dynamic IP address. If you are going to use both WAN ports, determine whether you are going to use them in fail over mode for increased network reliability or load balancing mode for maximum bandwidth efficiency. See Chapter 2: Router

Applications for more information.

2. Set up your accounts

Have access to the Internet and locate the Internet Service Provider (ISP) configuration information. Each BiGuard 50G WAN port must be configured separately, whether you are using a separate ISP for each WAN port or are having the traffic of both WAN ports routed through the same ISP.

3. Determine your network management approach

BiGuard 50G is capable of remote management. However, this feature is not active by default. If you reset the device, remote administration must be enabled again. If you decide to manage your network remotely, be sure to change the default

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password for security reason.

4. Prepare to physically connect BiGuard 50G to Cable or DSL modems and a computer.

Be sure to also review the Safety Warnings located in the preface of this manual before working with your BiGuard 50G.

3.3 Connecting Your Router

Connecting BiGuard 50G is an easy three-step process:

1. Connect BiGuard 50G to your LAN by connecting Ethernet cables from your networked PCs to the LAN ports on the router. Connect BiGuard 50G to your broadband Internet connection via router’s WAN port.

2. Plug BiGuard 50G to an AC outlet with the included AC Power Adapter.

3. Ensure that the Power and WAN LEDs are solidly lit, and that on any LAN port that has an Ethernet cable plugged in the LED is also solidly lit. The Status LED will remain solid as the device boots. Once the boot sequence is complete, the LED will shut off, indicating that BiGuard 50G is ready.

If the router does not power on, please refer to Chapter 5: Troubleshooting for possible solutions.

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3.4 Configuring PCs for TCP/IP Networking

Now that your BiGuard 50G is connected properly to your network, it’s time to configure your networked PCs for TCP/IP networking.

In order for your networked PCs to communicate with your router, they must have the following characteristics:

1. Have a properly installed and functioning Ethernet Network Interface Card (NIC).

2. Be connected to BiGuard 50G, either directly or through an external repeater hub via an Ethernet cable.

3. Have TCP/IP installed and configured with an IP address.

The IP address for each PC may be a fixed IP address or one that is obtained from a

DHCP server. If using a fixed IP address, it is important to remember that it must be in the same subnet as the router. The default IP address of BiGuard 50G is

192.168.1.254 with a subnet mask of 255.255.255.0. Using the default configuration, networked PCs must reside in the same subnet, and have an IP address in the range of 192.168.1.1 to 192.168.1.253. However, you’ll find that the quickest and easiest way to configure the IP addresses for your PCs is to obtain the

IP addresses automatically by using the router as a DHCP server.

If you are unable to access the web configuration interface, check to see if you have any software-based firewalls installed on your PCs, as they can cause problems accessing the 192.168.1.254 IP address of BiGuard 50G.

The following sections outline how to set up your PCs for TCP/IP networking. Refer to the applicable section for your PC’s operating system.

3.4.1 Overview

Before you begin, make sure that the TCP/IP protocol and a functioning Ethernet network adapter is installed on each of your PCs.

The following operating systems already include the necessary software components you need to install TCP/IP on your PCs:

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- Windows 95/98/Me/NT/2000/XP

- Mac OS 7 and later

If you are using Windows 3.1, you must purchase a third-party TCP/IP application package.

Any TCP/IP capable workstation can be used to communicate with or through

BiGuard 50G. To configure other types of workstations, please consult the manufacturer’s documentation.

3.4.2 Windows XP

3.4.2.1 Configuring

1. Select Start > Settings > Network Connections.

2. In the Network Connections window, right-click Local Area Connection and select Properties.

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3. Select Internet Protocol (TCP/IP) and click Properties.

4a. To have your PC obtain an IP address automatically, select the Obtain an IP

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address automatically and Obtain DNS server address automatically radio buttons.

4b. To manually assign your PC a fixed IP address, select the Use the following IP

address radio button and enter your desired IP address, subnet mask, and default gateway in the blanks provided. Remember that your PC must reside in the same subnet mask as the router. To designate a DNS server, select the Use the following

DNS server and fill in the preferred DNS address.

5. Click OK to finish the configuration.

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3.4.2.2 Verifying Settings

To verify your settings using a command prompt:

1. Click Start > Programs > Accessories > Command Prompt.

2. In the Command Prompt window, type ipconfig and then press ENTER.

If you are using BiGuard 50G’s default settings, your PC should have:

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- An IP address between 192.168.1.1 and 192.168.1.253

- A subnet mask of 255.255.255.0

To verify your settings using the Windows XP GUI:

1. Click Start > Settings > Network Connections.

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2. Right click one of the network connections listed and select Status from the pop-up menu.

3. Click the Support tab.

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If you are using BiGuard 50G’s default settings, your PC should:

- Have an IP address between 192.168.1.1 and 192.168.1.253

- Have a subnet mask of 255.255.255.0

3.4.3 Windows 2000

3.4.3.1 Configuring

1. Select Start > Settings > Control Panel.

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2. In the Control Panel window, double-click Network and Dial-up Connections.

3. In Network and Dial-up Connections, double-click Local Area Connection.

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4. In the Local Area Connection window, click Properties.

5. Select Internet Protocol (TCP/IP) and click Properties.

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6a. To have your PC obtain an IP address automatically, select the Obtain an IP

address automatically and Obtain DNS server address automatically radio buttons.

6b. To manually assign your PC a fixed IP address, select the Use the following IP

address radio button and enter your desired IP address, subnet mask, and default gateway in the blanks provided. Remember that your PC must reside in the same subnet mask as the router. To designate a DNS server, select the Use the following

DNS server and fill in the preferred DNS address.

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7. Click OK to finish the configuration.

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3.4.3.2 Verifying Settings

1. Click Start > Programs > Accessories > Command Prompt.

2. In the Command Prompt window, type ipconfig and then press ENTER.

If you are using BiGuard 50G’s default settings, your PC should have:

- An IP address between 192.168.1.1 and 192.168.1.253

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- A subnet mask of 255.255.255.0

3.4.4 Windows 98 / Me

3.4.4.1 Installing Components

To prepare Windows 98/Me PCs for TCP/IP networking, you may need to manually install TCP/IP on each PC. To do this, follow the steps below. Be sure to have your

Windows CD handy, as you may need to insert it during the installation process.

1. On the Windows taskbar, select Start > Settings > Control Panel.

2. Double-click the Network icon. The Network window displays a list of installed components.

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You must have the following installed:

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- An Ethernet adapter

- TCP/IP protocol

- Client for Microsoft Networks

If you need to install a new Ethernet adapter, follow these steps: a. Click Add. b. Select Adapter, then Add. c. Select the manufacturer and model of your Ethernet adapter, then click OK.

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If you need TCP/IP: a. Click Add.

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b. Select Protocol, then click Add. c. Select Microsoft. Æ TCP/IP, then OK.

If you need Client for Microsoft Networks: a. Click Add.

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b. Select Client, then click Add. c. Select Microsoft. Æ Client for Microsoft Networks, and then click OK.

3. Restart your PC to apply your changes.

3.4.4.2 Configuring

1. Select Start > Settings > Control Panel.

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2. In the Control Panel, double-click Network and choose the Configuration tab.

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3. Select TCP / IP > ASUSTek or the name of any Network Interface Card (NIC) in your PC and click Properties.

4. Select the IP Address tab and click the Obtain an IP address automatically radio button.

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5. Select the DNS Configuration tab and select the Disable DNS radio button.

6. Click OK to apply the configuration.

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3.4.4.3 Verifying Settings

To check the TCP/IP configuration, use the winipcfg.exe utility:

1. Select Start > Run.

2. Type winipcfg, and then click OK.

3. From the drop-down box, select your Ethernet adapter.

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The window is updated to show your settings. Using the default BiGuard 50G settings, your PC should have:

- An IP address between 192.168.1.1 and 192.168.1.253

- A subnet mask of 255.255.255.0

- A default gateway of 192.168.1.254

3.5 Factory Default Settings

Before configuring your BiGuard 50G, you need to know the following default settings:

Web Interface:

Username: admin

Password: admin

LAN Device IP Settings:

IP Address: 192.168.1.254

Subnet Mask: 255.255.255.0

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ISP setting in WAN site:

Obtain an IP Address automatically (DHCP Client)

DHCP server:

DHCP server is enabled.

Start IP Address: 192.168.1.100

End IP Address: 192.168.1.199

3.5.1 User Name and Password

The default user name and password are "admin" and "admin" respectively.

If you ever forget your user name and/or password, you can restore your BiGuard

50G to its factory settings by holding the Reset button on the back of your router until the Status LED begins to blink. Please note that doing this will also erase any previous router settings that you have made. The Status LED will remain solid as the device boots. Once the boot sequence is complete, the LED will shut off, indicating that BiGuard 50G is ready.

3.5.2 LAN and WAN Port Addresses

The default values for LAN and WAN ports are shown below:

LAN Port WAN Port

IP address

192.168.1.254

Subnet

Mask

255.255.255.0

The DHCP Client is enabled to automatically get the

WAN port configuration from the ISP.

DHCP server function

Enabled

IP addresses for distribution to PCs

100 IP addresses continuing from

192.168.1.100 through

192.168.1.199

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3.6 Information From Your ISP

3.6.1 Protocols

Before configuring this device, you have to check with your ISP (Internet Service

Provider) to find out what kind of service is provided such as DHCP, Static IP, PPPoE, or PPTP. The following table outlines each of these protocols:

DHCP

Configure this WAN interface to use DHCP client protocol to get an IP address from your ISP automatically. Your ISP provides an IP address to the router dynamically when logging in.

Static IP

Configure this WAN interface with a specific IP address. This IP address should be provided by your

ISP.

PPPoE

PPTP

PPPoE (PPP over Ethernet) is known as a dial-up DSL or cable service. It is designed to integrate the broadband services into the current widely deployed, easy-to-use, and low-cost dial-up-access networking infrastructure.

If your ISP provides a PPTP connection, you can use the PPTP protocol to establish a connection to your

ISP.

Big Pond

The Big Pond login for Telstra cable in Australia.

If your account uses PPP over Ethernet (PPPoE), you will need to enter your login name and password when configuring your BiGuard 50G. After the network and firewall are configured, BiGuard 50G will login automatically, and you will no longer need to run the login program from your PC.

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3.6.2 Configuration Information

If your ISP does not dynamically assign configuration information but instead uses fixed configurations, you will need the following basic information from your ISP:

- An IP address and subnet mask

- A gateway IP address

- One or more domain name server (DNS) IP addresses

Depending on your ISP, a host name and domain suffix may also be provided. If any of these items are dynamically supplied by the ISP, your BiGuard 50G will automatically acquire them.

If an ISP technician configured your computer or if you configured it using instructions provided by your ISP, you need to copy the configuration information from your PC’s Network TCP/IP Properties window before reconfiguring your computer for use with BiGuard 50G. The following sections describe how you can obtain this information.

3.6.2.1 Windows

This section uses illustrations from Windows XP. However, other versions of

Windows will follow a similar procedure. Have your Windows CD handy, as it may be required during the configuration process.

1. Select Start > Settings > Control Panel.

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2. Double-click the Network icon.

3. In the Network Connections window, right-click Local Area Connection and select Properties.

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4. Select Internet Protocol (TCP/IP) and click Properties.

5. If an IP address, subnet mask and a Default gateway are shown, write down the information. If no address is present, your account’s IP address is dynamically

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assigned. Click the Obtain an IP address automatically radio button.

6. If any DNS server addresses are shown, write them down. Click the Obtain DNS server address automatically radio button.

7. Click OK to save your changes.

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3.7 Web Configuration Interface

BiGuard 50G includes a Web Configuration Interface for easy administration via virtually any browser on your network. To access this interface, open your web browser, enter the IP address of your router, which by default is 192.168.1.254, and click Go. A user name and password window prompt will appear. Enter your user name and password (the default user name and password are "admin" and "admin") to access the Web Configuration Interface.

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If the Web Configuration Interface appears, congratulations! You are now ready to configure your BiGuard 50G. If you are having trouble accessing the interface, please refer to Chapter 5: Troubleshooting for possible resolutions.

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Chapter 4: Router Configuration

4.1 Overview

The Web Configuration Interface makes it easy for you to manage your network via any PC connected to it. On the Web Configuration homepage, you will see the navigation pane located on the left hand side. From it, you will be able to select various options used to configure your router.

1. Click Apply if you would like to apply the settings on the current screen to the device. The settings will be effective immediately, however the configuration is not saved yet and the settings will be erased if you power off or restart the device.

2. Click SAVE CONFIG to save the current settings permanently to the device.

3. Click RESTART to restart the device. There are two options to restart the device.

- Select Current Settings if would like to restart using the current configuration.

- Select Factory Default Settings if you would like to restart using the factory default configuration.

4. To exit the router’s web interface, click LOGOUT. Please ensure that you have saved your configuration settings before you logout. Be aware that the router is

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restricted to only one PC accessing the web configuration interface at a time. Once a PC has logged into the web interface, other PCs cannot gain access until the current PC has logged out. If the previous PC forgets to logout, the second PC can access the page after a user-defined period (5 minutes by default).

The following sections will show you how to configure your router using the Web

Configuration Interface.

4.2 Status

The Status menu displays the various options that have been selected and a number of statistics about your BiGuard 50G.

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Device Information

Device Name: Displays the device name.

System Up Time: System uptime enables a user to determine how long has the system being online or the time that an unexpected restart or fault occurred.

The system up-time is restarted when there is a power failure or upon software or hardware reset.

Registration: Click on the Register button to open a web page on Billion’s website to register the BiGuard 50G. Registration enables users to access new firmware, a user’s manual, latest product news, quick customer support, and FAQ.

Failover Status: Displays the current Failover port and show whether it is active or inactive.

Current Time: Displays the current time.

PrivateLAN MAC address: Displays the LAN MAC address for the LAN ports.

PublicWAN1 MAC address: Displays the WAN MAC address for the WAN1.

PublicWAN2 MAC address: Displays the WAN MAC address for the WAN2.

Firmware Version: Displays the current firmware version for the device.

Home URL: Displays the manufacturers website.

LAN

IP address: Displays the IP address of your device. You can click on the link to edit the IP address and the gateway IP.

Netmask: Displays the subnet mask for the LAN.

DHCP Server: Displays whether DHCP server is enabled or not. You can click on the link to edit the DHCP server.

WAN1

Connection Method: Displays the connection method for WAN1.

IP address: Displays the IP address for WAN1.

Netmask: Displays the subnet mask for WAN1.

Gateway: Displays the gateway for WAN1.

DNS Server: Displays the DNS Server for WAN1.

Up Time: Displays the time that WAN1 has been connected.

WAN2

Connection Method: Displays the connection method for WAN2.

IP address: Displays the IP address for WAN1.

Netmask: Displays the subnet mask for WAN2.

Gateway: Displays the gateway for WAN2.

DNS Server: Displays the DNS Server for WAN2.

Up Time: Displays the time that WAN2 has been connected.

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In this menu, you will find the following sections:

- ARP Table

- Wireless Association

- Routing Table

- Session Table

- DHCP Table

- IPSec Status

- PPTP Status

- Traffic Statistics

- CPU Status

- System Log

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4.2.1 ARP Table

The Address Resolution Protocol (ARP) Table shows the mapping of Internet (IP) addresses to Ethernet (MAC) addresses. This is a quick way to determine the MAC address of your PC’s network interface to use with the router’s Firewall – MAC

Address Filter function. See the Firewall section of this chapter for more information on this feature.

No.: Number of the list.

IP Address: A list of IP addresses of devices on your LAN.

MAC Address: The Media Access Control (MAC) addresses for each device on your

LAN.

Interface: The interface name (on the router) that this IP address connects to.

Static: Static status of the ARP table entry.

NO indicates dynamically-generated ARP table entries.

YES indicates static ARP table entries added by the user.

4.2.2 Wireless Association

The Wireless Association Table displays the wireless client’s MAC address with its corresponding IP address.

IP Address: A list of IP addresses of devices on your WLAN.

MAC Address: The Media Access Control (MAC) addresses for each device on your

WLAN.

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4.2.3 Routing Table

The Routing Table displays the current path for transmitted packets. Both static and dynamic routes are displayed.

No.: Number of the list.

Destination: The IP address of the destination network.

Netmask: The destination netmask address.

Gateway/Interface: The IP address of the gateway or existing interface that this route will use.

Cost: The number of hops counted as the cost of the route.

4.2.4 Session Table

The NAT Session Table displays a list of current sessions for both incoming and outgoing traffic with protocol type, source IP, source port, destination IP and destination port, each page shows 10 sessions.

No.: Number of the list.

Protocol: Protocol type of the Session.

From IP: Source IP of the session.

From Port: source port of the session.

To IP: Destination IP of the session.

To Port: Destination port of the session.

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Sessions:

Filter: when the presented field is filled, please click Filter button.

From IP: please input the source IP you would like to filter.

From Port: please input the source port you would like to filter.

To IP: please input the destination IP you would like to filter.

To Port: please input the destination port you would like to filter.

First: To the first page.

Previous: To the previous page.

Next: To the next page.

Last: To the last page.

Jump to the session: please input the session number you would like to see and press “GO”

4.2.5 DHCP Table

The DHCP Table displays a list of IP addresses that have been assigned to PCs on your network via Dynamic Host Configuration Protocol (DHCP).

No.: Number of the list.

IP Address: A list of IP addresses of devices on your LAN.

Device Name: The host name (computer name) of the client.

MAC Address: The MAC address of client.

Lease Time: The connection time to the DHCP server.

4.2.6 IPSec Status

The IPSec Status window displays the status of the IPSec Tunnels that are currently configured on your BiGuard 50G.

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Name: The name you assigned to the particular IPSec entry.

Enable: Whether the IPSec connection is currently Enable or Disable.

Status: Whether the IPSec is Active, Inactive or Disable.

Local Subnet: The local IP address or subnet used.

Remote Subnet: The subnet of the remote site.

Remote Gateway: The remote gateway IP address.

SA: The Security Association for this IPSec entry.

Action: Manually connect or drop the tunnel.

4.2.7 PPTP Status

The PPTP Status window displays the status of the PPTP Tunnels that are currently configured on your BiGuard 50G.

Name: The name you assigned to the particular PPTP entry.

Enable: Whether the PPTP connection is currently Enable or Disable.

Status: Whether the PPTP is Active, Inactive or Disable.

Type: Whether the Connection type is Remote Access or LAN to LAN

Peer Network: The Remote subnet for LAN to LAN as connection type.

Connect by: The remote address when connected.

Action: Manually drop the tunnel.

4.2.8 Traffic Statistics

The Traffic Statistics window displays both sent and received sent data (in Bytes/sec) over a one hour duration. The line in red represents WAN1, while the line in blue represents WAN2.

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WAN1: Transmitted (Tx) and Received (Rx) bytes and packets for WAN1.

WAN2: Transmitted (Tx) and Received (Rx) bytes and packets for WAN2.

Display: Allows you to change the units of measurement for the traffic graph.

4.2.9 CPU Statistics

This page displays the router’s system information.

Processor: The router’s processor type and model.

MemTotal: The router’s physical memory size.

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MemFree: The router’s current free memory size.

CPU status: The CPU’s usage shown in percentage each minute.

When the CPU percentage in use is higher than 80% the line will turn red.

When the CPU percentage in use is lower than 80% the line will turn blue.

4.2.10 System Log

This window displays BiGuard 50G’s System Log entries. Major events are logged on this window.

Display: There are several options in display, All logs allows the system to show all types of system logs, and there are also specific event logs such as; System

Maintenance, System Errors, Access Control, Packet Filter, LAN MAC Filter,

URL Filter, Intrusion Detection, Call Data Record, PPP, Remote Access, and

IPSEC.

Refresh: Refresh the System Log.

Clear Log: Clear the System Log.

Send Log: Send the System Log to your email account. You can set the email address in Configuration > System > Email Alert. See the Email Alert section for more details.

Save Log: Save the System log to a text file.

There are several links at the bottom right of the table indicating ‘<<First’,

‘<Previous’, a dropdown menu for the number of pages, ‘Next>’ and ‘Last>>’.

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First directs the page number for the table to the 1 st

page, previous directs the page number for the table to the one page before, the dropdown menu allows the user to specifically select the page number to view, next directs the page number for the table to the one page after current page, and last directs the page number for the table to the last page of the table.

Please refer to Appendix F: IPSec Log Events for more information on log events.

4.3 Quick Start

The Quick Start menu allows you to quickly configure your network for Internet access using the most basic settings. The Quick Start can be applied to both WAN1 or WAN2.

Connection Method: Select your router’s connection to the Internet. Selections include Obtain an IP Address Automatically, Static IP Settings, PPPoE

Settings, PPTP Settings, and Big Pond Settings.

4.3.1 DHCP

The following is information regarding your ISP that you will need to enter in order to properly configure your Internet connection. If you select to Obtain an IP

Address Automatically, these will be automatically set for you, provided that your

ISP dynamically assigns an IP address.

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4.3.2 Static IP

IP assigned by your ISP: Enter the assigned IP address from your IP.

IP Subnet Mask: Enter your IP subnet mask.

ISP Gateway Address: Enter your ISP gateway address.

Primary DNS: Enter your primary DNS.

Secondary DNS: Enter your secondary DNS.

Click Apply to save your changes. To reset to defaults, click Reset.

4.3.3 PPPoE

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

Connection: Select whether the connection should Always Connect or Trigger

on Demand. If you want the router to establish a PPPoE session when starting up and to automatically re-establish the PPPoE session when disconnected by the ISP, select Always Connect. If you want to establish a PPPoE session only when there

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is a packet requesting access to the Internet (i.e. when a program on your computer attempts to access the Internet), select Trigger on Demand.

Idle Time: Auto-disconnect the router when there is no activity on the line for a predetermined period of time. Select the idle time from the drop down menu. Active if Trigger on Demand is selected.

Click Apply to save your changes. To reset to defaults, click Reset.

4.3.4 PPTP

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

PPTP Client IP: Enter the PPTP Client IP provided by your ISP.

PPTP Client IP Netmask: Enter the PPTP Client IP Netmask provided by your ISP.

PPTP Client IP Gateway: Enter the PPTP Client IP Gateway provided by your ISP.

PPTP Server IP: Enter the PPTP Server IP provided by your ISP.

Connection: Select whether the connection should Always Connect or Trigger

on Demand. If you want the router to establish a PPTP session when starting up and to automatically re-establish the PPTP session when disconnected by the ISP, select Always Connect. If you want to establish a PPTP session only when there is a packet requesting access to the Internet (i.e. when a program on your computer attempts to access the Internet), select Trigger on Demand.

Idle Time: Auto-disconnect the router when there is no activity on the line for a

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predetermined period of time. Select the idle time from the drop down menu. Active if Trigger on Demand is selected.

Click Apply to save your changes. To reset to defaults, click Reset.

4.3.5 Big Pond

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

Login Server: Enter the IP of the Login server provided by your ISP.

Click Apply to save your changes. To reset to defaults, click Reset.

For detailed instructions on configuring WAN settings, please refer to the WAN section of this chapter.

4.4 Configuration

The Configuration menu allows you to set many of the operating parameters of

BiGuard 50G. In this menu, you will find the following sections:

- LAN

- WAN

- Dual WAN

- System

- Firewall

- VPN

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- QoS

- Virtual Server

- Advanced

These items are described below in the following sections.

4.4.1 LAN

There are three items within this section: Ethernet, Wireless, Wireless Securtiy,

DHCP Server and LAN Address Mapping.

4.4.1.1 Ethernet

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IP Address: Enter the internal LAN IP address for BiGuard 50G (192.168.1.254 by default).

Subnet Mask: Enter the subnet mask (255.255.255.0 by default).

RIP: RIP v2 Broadcast and RIP v2 Multicast. Check to enable RIP.

Wireless

WLAN Service: Default setting is set to Disable. If you have any wireless, both

802.11g and 802.11b, device in your network, you can select Enable.

Mode: The default setting is 802.11b+g (Mixed mode). If you do not know or have both 11g and 11b devices in your network, then keep the default in mixed mode.

From the drop-down manual, you can select 802.11g if you have only 11g card. If you have only 11b card, then select 802.11b.

ESSID: The ESSID is the unique name of a wireless access point (AP) to be distinguished from another. For security propose, change to a unique ID name to the

AP which is already built-in to the router’s wireless interface. It is case sensitive and must not excess 32 characters. Make sure your wireless clients have exactly the

ESSID as the device, in order to get connected to your network.

Note: ESSID is case sensitive and must not excess 32 characters.

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Hide ESSID: It is function in which transmits its ESSID to the air so that when wireless client searches for a network, router can then be discovered and recognized.

Default setting is Disable.

Enable: Select Enable if you do not want broadcast your ESSID. When select

Enable, no one will be able to locate the Access Point (AP) of your router.

Disable: When Disable is selected, you can allow anybody with a wireless client to be able to locate the Access Point (AP) of your router.

Regulation Domain: There are five Regulation Domains for you to choose from, including North America (N.America), Europe, France, etc. The Channel ID will be different based on this setting.

WMM(QOS): Wi-Fi Multimedia (WMM) QoS, the specification provides basic prioritization of data packets through the wireless network. When enabled, you will be less likely to hear delays during phone conversations, or higher quality live streaming whilst watching videos. The improvement is due to the delay of other network traffics which are not as critical and can be expensed, such as downloading files where a small delay is generally acceptable. For WMM QoS to work properly after it is enabled, both the servers and network cards communicating with each other must support WMM.

WMM-APSD: Enable WMM-APSD if you want to turn on the power saving mode.

WMM Automatic Power Save Delivery (APSD) provides efficient power management method to the router. It does so by waking up the wireless module of the router when there is a need to send or receive, then it goes back to sleep mode once the communication has ended. This mechanism will save more power through the router than the traditional ‘always on’ method.

Channel ID: Select the ID channel that you would like to use.

Tx Power Level: It is function that enhances the wireless transmitting signal strength. User may adjust this power level from minimum 0 up to maximum 255.

Note: The Power Level maybe different in each access network user premises environment and choose the most suitable level for your network.

AP MAC Address: It is a unique hardware address of the Access Point.

AP Firmware Version: The Access Point firmware version.

Wireless Distribution System (WDS)

It is a wireless access point mode that enables wireless link and communication with other access point. It is easy to be installed, simply define the peer’s MAC address

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of the connected AP. WDS takes advantages of cost saving and flexibility which no extra wireless client device is required to bridge between two access points and extending an existing wired or wireless infrastructure network to create a larger network.

In addition, WDS enhances its link connection security in WEP mode, WEP key encryption must be the same for both access points.

WDS Service: The default setting is Disable. Check Enable radio button to activate this function.

1. Peer WDS MAC Address: It is the associated AP’s MAC Address. It is important that your peer’s AP must include your MAC address in order to acknowledge and communicate with each other.

2. Peer WDS MAC Address: It is the second associated AP’s MAC Address.

3. Peer WDS MAC Address: It is the third associated AP’s MAC Address.

4. Peer WDS MAC Address: It is the fourth associated AP’s MAC Address.

Note: For MAC Address, Semicolon ( : ) or Dash (-) must be included.

4.4.1.2 Wireless Security

You can disable or enable with WPA or WEP for protecting wireless network. The default mode of wireless security is disabled.

WPA Pre-Shared Key

WPA Algorithms: TKIP (Temporal Key Integrity Protocol) / AES(Advanced

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Encryption Standard) utilizes a stronger encryption method and incorporates

Message Integrity Code (MIC) to provide protection against hackers.

WPA Shared Key: The key for network authentication. The input format is in character style and key size should be in the range between 8 and 63 characters.

Group Key Renewal: The period of renewal time for changing the security key automatically between wireless client and Access Point

(AP).

WPA2 Pre-Shared Key

WPA2 Algorithms: TKIP (Temporal Key Integrity Protocol) / AES(Advanced

Encryption Standard) utilizes a stronger encryption method and incorporates

Message Integrity Code (MIC) to provide protection against hackers.

WPA2 Shared Key: The key for network authentication. The input format is in character style and key size should be in the range between 8 and 63 characters.

Group Key Renewal: The period of renewal time for changing the security key automatically between wireless client and Access Point (AP).

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4.4.1.3 WEP

WEP Encryption: To prevent unauthorized wireless stations from accessing data transmitted over the network, the router offers highly secure data encryption, known as WEP. If you require high security for transmissions, there are two alternatives to select from: WEP 64 and WEP 128. WEP 128 will offer increased security over WEP 64.

Default Used WEP Key: Select the encryption key ID; please refer to Key (1~4) below.

Passphrase: This is used to generate WEP keys automatically based upon the input string and a pre-defined algorithm in WEP64 or WEP128. You can input the same string in both the AP and Client card settings to generate the same WEP keys. Please note that you do not have to enter Key (1-4) as below when the Passphrase is enabled..

Key (1-4): Enter the key to encrypt wireless data. To allow encrypted data

transmission, the WEP Encryption Key values on all wireless stations must be the same as the router. There are four keys for your selection. The input format is in HEX style, 5 and 13 HEX codes are required for WEP64 and WEP128 respectively no any separator is included.

4.4.1.4 DHCP Server

In this menu, you can disable or enable the Dynamic Host Configuration Protocol

(DHCP) server. The DHCP protocol allows your BiGuard 50G to dynamically assign IP addresses to PCs on your network if they are configured to automatically obtain IP addresses.

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To disable the router’s DHCP Server, select the Disable radio button, and then click

Apply. When the DHCP Server is disabled, you will need to manually assign a fixed

IP address to each PC on your network, and set the default gateway for each PC to the IP address of the router (192.168.1.254 by default).

To configure the router’s DHCP Server, select the Enable radio button, and then configure parameters of the DHCP Server including the IP Pool (starting IP address and ending IP address to be allocated to the PCs on your network), DNS Server,

WINS Server, and Domain Name. These details are sent to each DHCP client when they request an IP address from the DHCP server. Click Apply to enable this function.

Fixed Host allows specific computer/network clients to have a reserved IP address.

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Name: Enter the name you want to give for the IP+Mac Address Fixed Host account.

Active: Select whether you want to Enable or Disable this particular Fixed Host account.

IP Address: Enter the IP address that you want to reserve for the above MAC address.

MAC Address: Enter the MAC address of the PC or server you wish to be assigned a reserved IP.

Candidates: You can also select the Candidates which are referred from the ARP table for automatic input.

Click the Apply button to add the configuration into the Host Table.

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4.4.1.5 LAN Address Mapping

LAN Address Mapping is a function that can support multiple subnet and also multiple NAT, you can specify a subnet and LAN Gateway IP Address and select associated WAN IP Address specified in WAN IP Alias in Configuration -> WAN ->

WAN IP Alias.

Please click Create to create a LAN Address Mapping rule.

Name: Please input the name of the rule.

IP Address: Please input the LAN Gateway IP Address you would like to use.

Netmask: Please input the Netmask you would like to use.

WAN IP Address: Please click Candidates to select the WAN IP address you would like to use from WAN Alias list.

Click the Apply button to add the configuration into the LAN Address Mapping.

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4.4.2 WAN

WAN refers to your Wide Area Network connection. In most cases, this means your router’s connection to the Internet through your ISP. BiGuard30 features Dual WAN capability. There are three items within this section:

The WAN menu contains two items: ISP Settings, Bandwidth Settings and WAN

IP Alias.

4.4.2.1 ISP Settings

This ISP Settings Table displays the different WAN connections that are configured on BiGuard 50G. To edit any of these connections, click Edit. You will be taken to the following menu.

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Connection Method: Select how your router will connect to the Internet. Selections include Obtain an IP Address Automatically, Static IP Settings, PPPoE

Settings, PPTP Settings, and Big Pond Settings. For each WAN port, the factory default is DHCP. If your ISP does not use DHCP, select the correct connection method and configure the connection accordingly. Configurable items will vary depending on the connection method selected.

4.4.2.1.1 DHCP

Host Name: Some ISPs authenticate logins using this field.

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MAC Address: If your ISP requires you to input a WAN Ethernet MAC, check the checkbox and enter your MAC address in the blanks below.

Candidates: You can also select the MAC address from the list in the Candidates.

DNS: If your ISP requires you to manually setup DNS settings, check the checkbox and enter your primary and secondary DNS.

RIP: To activate RIP, select Send, Receive, or Both from the drop down menu. To disable RIP, select Disable from the drop down menu.

MTU: Enter the Maximum Transmission Unit (MTU) for your network.

Network Address Translation: Enables or Disables the NAT function. To apply this interface as router mode please select Disable. Due to default firewall feature, if you would like to use router mode, you have to input the packet filter rules you would like to forward in Configuration -> Firewall -> Packet filter

Click Apply to save your changes. To reset to defaults, click Reset.

4.4.2.1.2 Static IP

IP assigned by your ISP: Enter the static IP assigned by your ISP.

IP Subnet Mask: Enter the IP subnet mask provided by your ISP.

ISP Gateway Address: Enter the ISP gateway address provided by your ISP.

MAC Address: If your ISP requires you to input a WAN Ethernet MAC, check the checkbox and enter your MAC address in the blanks below.

Candidates: You can also select the MAC address from the list in the Candidates.

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Primary DNS: Enter the primary DNS provided by your ISP.

Secondary DNS: Enter the secondary DNS provided by your ISP.

RIP: To activate RIP, select Send, Receive, or Both from the drop down menu. To disable RIP, select Disable from the drop down menu.

MTU: Enter the Maximum Transmission Unit (MTU) for your network.

Network Address Translation: Enables or Disables the NAT function. To apply this interface as router mode please select Disable. Due to default firewall feature, if you would like to use router mode, you have to input the packet filter rules you would like to forward in Configuration -> Firewall -> Packet filter

Click Apply to save your changes. To reset to defaults, click Reset.

4.4.2.1.3 PPPoE

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

Connection: Select whether the connection should Always Connect or Trigger

on Demand. If you want the router to establish a PPPoE session when starting up and to automatically re-establish the PPPoE session when disconnected by the ISP,

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select Always Connect. If you want to establish a PPPoE session only when there is a packet requesting access to the Internet (i.e. when a program on your computer attempts to access the Internet), select Trigger on Demand.

Idle Time: Auto-disconnect the router when there is no activity on the line for a predetermined period of time. Select the idle time from the drop down menu. Active if Trigger on Demand is selected.

IP Assigned by your ISP: If your IP is dynamically assigned by your ISP, select the

Dynamic radio button. If your IP assigns a static IP address, select the Static radio button, and input your IP address in the blank provided.

MAC Address: If your ISP requires you to input a WAN Ethernet MAC, check the

checkbox and enter your MAC address in the blanks below.

Candidates: You can also select the MAC address from the list in the Candidates.

DNS: If your ISP requires you to manually setup DNS settings, check the checkbox and enter your primary and secondary DNS.

RIP: To activate RIP, select Send, Receive, or Both from the drop down menu. To disable RIP, select Disable from the drop down menu.

MTU: Enter the Maximum Transmission Unit (MTU) for your network.

Network Address Translation: Enables or Disables the NAT function. To apply this interface as router mode please select Disable. Due to default firewall feature, if you would like to use router mode, you have to input the packet filter rules you would like to forward in Configuration -> Firewall -> Packet filter

Click Apply to save your changes. To reset to defaults, click Reset.

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4.4.2.1.4 PPTP Settings

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

PPTP Client IP: Enter the PPTP Client IP provided by your ISP.

PPTP Client IP Netmask: Enter the PPTP Client IP Netmask provided by your ISP.

PPTP Client IP Gateway: Enter the PPTP Client IP Gateway provided by your ISP.

PPTP Server IP: Enter the PPTP Server IP provided by your ISP.

Connection: Select whether the connection should Always Connect or Trigger

on Demand. If you want the router to establish a PPTP session when starting up and to automatically re-establish the PPTP session when disconnected by the ISP, select Always Connect. If you want to establish a PPTP session only when there is a packet requesting access to the Internet (i.e. when a program on your computer attempts to access the Internet), select Trigger on Demand.

Idle Time: Auto-disconnect the router when there is no activity on the line for a predetermined period of time. Select the idle time from the drop down menu. Active if Trigger on Demand is selected.

IP Assigned by your ISP: If your IP is dynamically assigned by your ISP, select the

Dynamic radio button. If your IP assigns a static IP address, select the Static radio

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button. This will take you to another page for inputting the IP address information.

MAC Address: If your ISP requires you to input a WAN Ethernet MAC, check the checkbox and enter your MAC address in the blanks below.

Candidates: You can also select the MAC address from the list in the Candidates.

DNS: If your ISP requires you to manually setup DNS settings, check the checkbox and enter your primary and secondary DNS.

RIP: To activate RIP, select Send, Receive, or Both from the drop down menu. To disable RIP, select Disable from the drop down menu.

MTU: Enter the Maximum Transmission Unit (MTU) for your network.

Network Address Translation: Enables or Disables the NAT function. To apply this interface as router mode please select Disable. Due to default firewall feature, if you would like to use router mode, you have to input the packet filter rules you would like to forward in Configuration -> Firewall -> Packet filter

Click Apply to save your changes. To reset to defaults, click Reset.

4.4.2.1.5 Big Pond Settings

Username: Enter your user name.

Password: Enter your password.

Retype Password: Retype your password.

Login Server: Enter the IP of the Login server provided by your ISP.

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MAC Address: If your ISP requires you to input a WAN Ethernet MAC, check the checkbox and enter your MAC address in the blanks below.

Candidates: You can also select the MAC address from the list in the Candidates.

DNS: If your ISP requires you to manually setup DNS settings, check the checkbox and enter your primary and secondary DNS.

RIP: To activate RIP, select Send, Receive, or Both from the drop down menu. To disable RIP, select Disable from the drop down menu.

MTU: Enter the Maximum Transmission Unit (MTU) for your network.

Network Address Translation: Enables or Disables the NAT function. To apply this interface as router mode please select Disable. Due to default firewall feature, if you would like to use router mode, you have to input the packet filter rules you would like to forward in Configuration -> Firewall -> Packet filter

Click Apply to save your changes. To reset to defaults, click Reset.

A simpler alternative is to select Quick Start from the main menu. Please see the

Quick Start section of this chapter for more information.

4.4.2.2 Bandwidth Settings

Under Bandwidth Settings, you can easily configure both inbound and outbound bandwidth for each WAN port.

WAN1: Enter your ISP inbound and outbound bandwidth for WAN1.

WAN2: Enter your ISP inbound and outbound bandwidth for WAN2.

NOTE: These values entered here are referenced by both QoS and Load Balancing functions.

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WAN IP Alias

WAN IP Alias allows you to input additional WAN IP addresses. WAN IP Alias can be used for Multiple NAT settings, including LAN Address Mapping settings and Virtual

Server settings.

Please click Create to create a LAN Address Mapping rule.

Name: Please input the name of the rule.

IP Address: Please input the additional WAN IP address you would like to use.

Interface: Please select the WAN Interface that you would like to add the additional

WAN IP to.

Click the Apply button to add the configuration into the WAN IP Alias.

4.4.3 Dual WAN

In this section, you can setup the fail over or load balance function, outbound load balance or inbound load balance function, or setup specific protocol to bind with

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specific WAN port. In this menu are the following sections: General Settings,

Outbound Load Balance, Inbound Load Balance, and Protocol Binding.

4.4.3.1 General Settings

Mode: You can select Load Balance or Fail Over.

Service Detection: Enables or disables the service detection feature. For fail over, the service detection function is enabled. For load balance, user is able to enable or disable it.

Connectivity Decision: Establishes the number of times probing the connection has to fail before the connection is judged as failed.

Probe Cycle: The number of seconds between each probe.

Probe WAN1: Determines if WAN1 is a gateway or host. If host is selected, please enter the IP address.

Probe WAN2: Determines if WAN2 is a gateway or host. If host is selected, please enter the IP address.

Fail back to WAN1 when possible: Enables or disables fail back to WAN1. This function only applies to fail over.

Click Apply to save your changes.

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4.4.3.2 Outbound Load Balance

Outbound Load Balancing on BiGuard 50G can be based on one of two methods:

1. By session mechanism

2. By IP address hash mechanism

Choose one by clicking the corresponding radio button.

Based on Session Mechanism: The source IP address and destination IP address can go through WAN1 or WAN2 depending to policies set in this mechanism. You can choose this mechanism if the applications the users use will not tell the difference of the WAN IP addresses. (some applications in the Internet need to identify the source

IP address, e.g. Back, Forum, …)

Balance by Session (Round Robin): Balances session traffic based on a round robin method.

Balance by Session (weight of length capacity): Balances session traffic based on weight of length capacity.

Balance by Session weight: Balances session traffic based on a weight ratio.

Enter the desired ratio in the blanks provided.

Balance by Traffic (weight of length capacity): Balances traffic based on weight of link capacity.

Balance by Traffic weight: Balances traffic based on a traffic weight ratio.

Enter the desired ratio into the blanks provided.

Based on IP hash mechanism: The source IP address and destination IP address will go through specific WAN port (WAN1 or WAN2) according to policy settings in this mechanism. This will assure that some applications will work when it would like

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to authenticate the source IP address.

Balance by weight of link capacity: Uses an IP hash to balance traffic based on weight of link bandwidth capacity.

Balance by weight: Uses an IP hash to balance traffic based on a ratio. Enter the desired ratio into the blanks provided.

Click Apply to save your changes.

4.4.3.3 Inbound Load Balance

Function: Used to enable or disable inbound load balancing.

DNS Server 1: DNS Server 1 settings including Host URL mappings.

DNS Server 2: DNS Server 2 settings including Host URL mappings.

To edit server settings, click Edit. The following example illustrates DNS Server 1 settings. DNS Server 2 settings follow a similar procedure.

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SOA:

Domain Name: The domain name of DNS Server 1. It is the name that you register on DNS organization. You have to fill-out the Fully Qualified Domain

Name (FQDN) with an ending character (a dot) for this text field.(ex:abc.com.).When you enter the following domain name, you can only input different chars without an ending dot, its name is then added with domain name, and it becomes FQDN.

Primary Name Server: The name assigned to the Primary Name Server.

(e.g:aaa, its FQDN is aaa.abc.com.)

Admin.

Mail Box: The administrator’s email account.(e.g:[email protected])

Serial Number: It is the version number that keeps in the SOA record.

Refresh Interval: The interval refreshes are done. Denoted in seconds.

Retry Interval: The interval retries are done. Denoted in seconds.

Expiration Time: The length of time that can elapse before the zone is no longer authoritative. Denoted in seconds.

Minimum TTL: The minimum time to live. Denoted in seconds.

NS Record

Name Server: The name of the Primary Name Server.

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MX Record

Mail Exchanger: The name of the mail server.

IP Address: The mail server IP address.

Click Apply to save your changes.

To edit the Host Mapping URL list, click Edit. This will open the Host Mapping URL table, which lists the current Host Mapping URLs.

To add a host mapping URL to the list, click Create.

Domain Name: The domain name of the local host.

Host URL: The URL address to be mapped.

Private IP Address: The IP address of the local host.

Helper: You could also select the application type you would like to apply for automatic input.

Port Range: The port range of all incoming packets are accepted and processed by a local host with the specified private IP address.

Candidates: You can also select the Candidates which are referred from the ARP table for automatic input.

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Name1: The Alias Host URL

Name2: The Alias Host URL

Click Apply to save your changes.

4.4.3.4 Protocol Binding

Protocol Binding lets you direct specific traffic to go out from a specific WAN port.

Click the Create button to create a new policy entry. Policies entered would tell specific types of Internet traffic from a particular range of IPs to go to a particular range of IPs with ONE WAN port, rather than using both of the WAN ports with load balancing.

(NOTE: If any policies are added in the Protocol Binding section, please note that it would take precedence over the settings that are already configured in the Load

Balance Setting section.)

The Protocol Binding Table lists any protocol binding that has been configured. To add a new binding, click

Create.

Interface: Choose which WAN port to use: WAN1, WAN2

Packet Type: The particular protocol of Internet traffic for the specified policy.

Choose from TCP, UDP, or Any.

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Source IP Range:

All Source IP: Click it to specify all source IPs.

Specified Source IP: Click to specify a specific source IP address and source

IP netmask.

Source IP Address: If Specified Source IP was chosen, here’s where the IP can be entered.

Source IP Netmask: If Specified Source IP was chosen, here’s where the subnet mask can be entered.

Destination IP Range:

All Destination IP: Click it to specify all source IPs.

Specified Destination IP: Click to specify a specific destination IP address and Destination IP Netmask.

Destination IP Address: If Specified Destination IP was chosen, here’s where the

IP can be entered.

Destination IP Netmask: If Specified Destination IP was chosen, here’s where the subnet mask can be entered.

Port Range: The range of ports for the specified policy (if you only want to use one port, enter the same value in both boxes).

Click Apply to save your changes.

4.4.4 System

The System menu allows you to adjust a variety of basic router settings, upgrade firmware, set up remote access, and more. In this menu are the following sections:

Time Zone, Remote Access, Firmware Upgrade, Backup/Restore, Restart,

Password, System Log and E-mail Alert.

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Time Zone

BiGuard does not use an onboard real time clock; instead, it uses the Network Time

Protocol (NTP) to acquire the current time from an NTP server outside your network.

Simply choose your local time zone, enter NTP Server IP Address, and click Apply.

After connecting to the Internet, BiGuard 50G will retrieve the correct local time from the NTP server you have specified. Your ISP may provide an NTP server for you to use.

Time Zone: Select Enable or Disable this function.

Local Time Zone(+-GMT Time): Please select the time zone that belongs to your area.

NTP Server Address: Please input the NTP server address you would like to use.

Daylight Saving: To have BiGuard 50G automatically adjust for Daylight Savings

Time, please check the Automatic checkbox.

Resync Period: Please input the resync circle of time zone update.

Click Apply to apply the rule, Click Cancel to discard the changes.

Remote Access

To allow remote users to configure and manage BiGuard 50G through the Internet, select the Enable radio button. To deactivate remote access, select the Disable radio button. This function also enables you to grant access from any PC or from a specific

IP address. Click Apply to save your settings.

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NOTE: When enabling remote access, please make sure to change the default administration password for security reason.

Action: Select Enable or Disable remote access function.

HTTPS Port: Please input the remote access HTTPS port you would like to use.(default is 443)

Click Apply to apply your settings.

Click Create to add a Remote Access Table to specify the allowed remote access addresses.

Allow Remote Access By:

Everyone: Please check if you allow any IP addresses for the remote user to access.

Only the PC: Please specify the IP Address that is allowed to access.

PC from the subnet: Please specify the subnet that is allowed to access.

4.4.4.3 Firmware Upgrade

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Upgrading your BiGuard 50G’s firmware is a quick and easy way to enjoy increased functionality, better reliability, and ensure trouble-free operation. To upgrade your firmware, simply visit Billion’s website ( http://www.billion.com

) and download the latest firmware image file for BiGuard 50G. Next, click Browse and select the newly downloaded firmware file. Click Upgrade to complete the update.

NOTE: DO NOT power down the router or interrupt the firmware upgrade while it is still in process. Interrupting the firmware upgrade process could damage the router.

4.4.4.4 Backup / Restore

This feature allows you to save and backup your router’s current settings, or restore a previously saved backup. This is useful if you wish to experiment with different settings, knowing that you have a backup handy. It is advisable to backup your router’s settings before making any significant changes to your router’s configuration.

To backup your router’s settings, click Backup and select where to save the settings

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backup file. You may also change the name of the file when saving if you wish to keep multiple backups. Click OK to save the file.

To restore a previously saved backup file, click Browse. You will be prompted to select a file from your PC to restore. Be sure to only restore setting files that have been generated by the Backup function, and that were created when using the same firmware version. Settings files saved to your PC should not be manually edited in any way. After selecting the settings file you wish to use, clicking Restore will load those settings into the router.

4.4.4.5 Restart

The Restart feature allows you to easily restart BiGuard 50G. To restart with your last saved configuration, select the Current Settings radio button and click Restart.

If you wish to restart the router using the factory default settings, select Factory

Default Settings and click Restart to reboot BiGuard 50G with factory default settings.

You may also reset your router to factory default settings by holding the Reset button on the router until the Status LED begins to blink. Once BiGuard 50G completes the boot sequence, the Status LED will stop blinking.

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4.4.4.6 Password

In order to prevent unauthorized access to your router’s configuration interface, it requires the administrator to login with a password. You can change your password by entering your new password in both fields. Click Apply to save your changes.

Click Reset to reset to the default administration password (admin).

4.4.5 Firewall

BiGuard 50G includes a full Stateful Packet Inspection (SPI) firewall for controlling

Internet access from your LAN, and preventing attacks from hackers. Your router also acts as a "natural" Internet firewall when using Network Address Translation

(NAT), as all PCs on your LAN will use private IP addresses that cannot be directly accessed from the Internet. Please see the WAN configuration section for more details.

You can find five items under the Firewall section: Packet Filter, URL Filter,

Ethernet MAC Filter, Wireless MAC Filter, Block WAN Request, and

Intrusion Detection.

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4.4.5.1 Packet Filter

The Packet Filter function is used to limit user access to certain sites on the Internet or LAN. The Filter Table displays all current filter rules. If there is an entry in the

Filter Table, you can click Edit to modify the setting of this entry, click Delete to remove this entry, or click Move to change this entry’s priority.

When the entry is upper, the priority is higher.

To create a new filter rule, click Create.

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ID: This is an identify that allows you to move the rule by before or after an ID.

Rule: Enable or Disable this entry.

Action When Matched: Select to Drop or Forward the packet specified in this filter entry.

Direction: Incoming Packet Filter rules prevent unauthorized computers or applications accessing your local network from the Internet. Outgoing Packet Filter rules prevent unauthorized computers or applications accessing the Internet. Select if the new filter rule is incoming or outgoing.

Source IP: Select Any, Subnet, IP Range or Single Address.

Starting IP Address: Enter the source IP or starting source IP address this filter rule is to be applied.

End IP Address: Enter the End source IP Address this filter rule is to be applied.

(for IP Range only)

Netmask: Enter the subnet mask of the above IP address.

Destination IP: Select Any, Subnet, IP Range or Single Address.

Starting IP Address: Enter the destination IP or starting destination IP address this filter rule is to be applied.

End IP Address: Enter the End destination IP Address this filter rule is to be applied.

(for IP Range only)

Netmask: Enter the subnet mask of the above IP address.

Protocol: Select the Transport protocol type (Any, TCP, UDP).

Source Port Range: Enter the source port number range. If you only want to specify one service port, then enter the same port number in both boxes.

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Destination Port Range: Enter the destination port number range. If you only want to specify one service port, then enter the same port number in both boxes.

Helper: You could also select the application type you would like to apply for automatic input.

Schedule: Allows you select a time for this QoS policy to be applied to. This option allows Admin to easily control the QoS of a particular user using a particular IP by using several Schedule events for the different parts of the day. (Look for Chapter

4.4.9.4 Schedule on how to create a new schedule)

Candidate: Clicking on Candidate will present you with a pop-up window of the available Schedule policies set.

Log: Select Enable for this option if you will like to capture the logs for this packet filter policy.

4.4.5.2 URL Filter

The URL Filter is a powerful tool that can be used to limit access to certain URLs on the Internet. You can block web sites based on keywords or even block out an entire domain. Certain web features can also be blocked to grant added security to your network.

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URL Filtering: You can choose to Enable or Disable this feature.

Keyword Filtering: Click the checkbox to enable this feature. To edit the list of filtered keywords, click Details.

Domain Filtering: Click the "enable" checkbox to enable filtering by Domain Name.

Click the "Disable all WEB traffic except for trusted domains" check box to allow web access only for trusted domains.

Restrict URL Features: Click "Block Java Applet" to filter web access with Java

Applet components. Click "Block ActiveX" to filter web access with ActiveX components. Click "Block Web proxy" to filter web proxy access. Click "Block

Cookie" to filter web access with Cookie components. Click "Block Surfing by IP

Address" to filter web access with an IP address as the domain name.

Log: Select Enable for this option if you will like to capture the logs for this URL filter policy.

Exception List: You can input a list of IP addresses as the exception list for URL filtering.

Enter a keyword to be filtered and click Apply. Your new keyword will be added to the filtered keyword listing.

Domains Filtering: Click the top checkbox to enable this feature. You can also choose to disable all web traffic except for trusted sites by clicking the bottom checkbox. To edit the list of filtered domains, click Details.

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Enter a domain and select whether this domain is trusted or forbidden with the pull-down menu. Next, click Apply. Your new domain will be added to either the

Trusted Domain or Forbidden Domain listing, depending on which you selected previously.

You may also designate which IP addresses are to be excluded from these filters by adding them to the Exception List. To do so, click Add.

Enter a name for the IP Address and then enter the IP address itself. Click Apply to save your changes. The IP address will be entered into the Exception List, and excluded from the URL filtering rules in effect.

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4.4.5.3 Ethernet MAC Filter

Ethernet Mac Filter can decide if BiGuard will filter those devices at LAN side by MAC

Address and determine if they can connect to the internet or not.

Default Rule: Forward or Drop all LAN request. (Forward by default)

Create: You can also input a specified MAC Address to be dropped or Forward without depending on the default rule.

Rule: Enable or disable this entry.

Action When Matched: Select to Drop or Forward the packet specified in this filter entry.

MAC Address: The MAC Address you would like to apply.

Candidates: You can also select the Candidates which are referred from the ARP table for automatic input.

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4.4.5.4 Wireless MAC Filter

Prevents unauthorized computers access from using the Internet through the router.

Wireless MAC Filter can

Default Rule: Forward or Drop all wireless request. (Forward by default)

Click on Create to create a new rule. You can input a specified MAC Address to be dropped or Forward. This new rule will be prioritized before the Default Rule.

Rule: Enable or disable this entry.

Action When Matched: Select to Drop or Forward the packet specified in this filter entry.

MAC Address: The MAC Address you would like to apply.

Candidates: You can also select the Candidates which are referred from the ARP table for a selection of MAC addresses that you can click and choose.

Log: Enable or disable log capture for this entry.

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4.4.5.5 Block WAN Request

Blocking WAN requests is one way to prevent DDOS attacks by preventing ping requests from the Internet. Use this menu to enable or disable function.

4.4.5.6 Intrusion Detection

Intrusion Detection can prevent most common DoS attacks from the Internet or from LAN users.

Intrusion Detection: Enable or disable this function.

Intrusion Log: All the detected and dropped attacks will be shown in the system log.

ARP Protection: ARP protection is used to protect users on the LAN against ARP virus. When enabled, ARP Protection will only protect computers that were set in

Fixed Host so that the ARP table of the hosts can be updated. Periodically

BiGuard30 will send ARP packets to these computers to refresh their ARP tables.

Enabling ARP Protection can prevent potential viruses infecting computers within the local network. Enabling this option will mitigate the effect of ARP virus attack on

LAN.

Session Limit: Allows administrators to self-define the amount of sessions that currently allowed to connect to BiGuard30. This function limits the number of

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connections on per-user basis. This is useful when controlling users who will use the applications which create a large number of connections (such as P2P software).

No Limit: No restrictions on the amount of sessions allowed to connect to

BiGuard30.

Limit Maximum sessions per IP to: Restricts an upper limit of sessions allowed to connect to BiGuard30, additional sessions beyond the maximum limit will not be allowed to connect.

Limit Maximum sessions per IP to (with reject and drop options): Just like the previous option, this option expands on what to do with additional sessions above the maximum limit. You can either reject the additional sessions for a period of time or just drop all packets from those sessions for a period of time.

4.4.6 VPN

VPN is a way to establish secured communication tunnels to an organization’s network via the Internet.

You can find two items under the VPN section: IPSec and PPTP.

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4.4.6.1 IPSec

IPSec is a set of protocols that enable Virtual Private Networks (VPN).

You can find two items under the IPSec section: IPSec Wizard and IPSec Policy.

4.4.6.1.1 IPSec Wizard

Connection Name: A user-defined name for the connection.

Interface: Select the interface the IPSec tunnel will apply to.

WAN1: Select interface WAN1

WAN2: Select interface WAN2

Auto: The device will automatically apply the tunnel to WAN1 or WAN2 depending on which WAN interface is active when the IPSec tunnel is being established. Note. Auto only applies to Fail Over mode. For Load Balance mode, please do not select "Auto". In Load Balance mode, Auto will be forced to WAN1 interface if Auto is selected.

Pre-shared Key: This is for the Internet Key Exchange (IKE) protocol. IKE is used to establish a shared security policy and authenticated keys for services (such as

IPSec) that require a key. Before any IPSec traffic can be passed, each router must be able to verify the identity of its peer. This can be done by manually entering the

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pre-shared key into both sides (router or hosts).

Connection Type:

There are 5 connection types:

(1)LAN to LAN: BiGuard would like to establish an IPSec VPN tunnel with remote router using Fixed Internet IP or domain name by using main mode.

Secure Gateway Address (or Domain Name): The IP address or hostname of the remote VPN gateway.

Remote Network: The subnet of the remote network. Allows you to enter an IP address and netmask.

Back: Back to the Previous page.

Next: Go to the next page.

(2)LAN to Mobile LAN: BiGuard would like to establish an IPSec VPN tunnel with remote router using Dynamic Internet IP by using aggressive mode.

Remote Identifier: The Identifier of the remote gateway. According to the input value, the ID type will be auto-defined as IP Address, FQDN(DNS) or FQUN(E-mail).

Remote Network: The subnet of the remote network. Allows you to enter an IP address and netmask.

Back: Back to the Previous page.

Next: Go to the next page.

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(3)LAN to Host: BiGuard would like to establish an IPSec VPN tunnel with remote client software using Fixed Internet IP or domain name by using main mode.

Secure Gateway Address (or Domain Name): The IP address or hostname of the remote VPN device that is connected and establishes a VPN tunnel.

Back: Back to the Previous page.

Next: Go to the next page.

(4)LAN to Mobile Host: BiGuard would like to establish an IPSec VPN tunnel with remote client software using Dynamic Internet IP by using aggressive mode.

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Remote Identifier: The Identifier of the remote gateway. According to the input value, the ID type will be auto-defined as IP Address, FQDN(DNS) or FQUN(E-mail).

Back: Back to the Previous page.

Next: Go to the next page.

(5)LAN to Host (for BiGuard VPN Client only): BiGuard would like to establish an

IPSec VPN tunnel with BiGuard VPN Client software C01 by using aggressive mode.

VPN Client IP Address: The VPN Client Address for BiGuard VPN Client, this value will be applied on both remote ID and Remote Network as single address.

Back: Back to the Previous page.

Next: Go to the next page.

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After your configuration is done, you will see a Configuration Summary.

Back: Back to the Previous page.

Done: Click Done to apply the rule.

4.4.6.1.2 IPSec Policy

Click Create to create a new IPSec VPN connection account.

Configuring a New VPN Connection

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Connection Name: A user-defined name for the connection.

Tunnel: Select Enable to activate this tunnel. Select Disable to deactivate this tunnel.

Interface: Select the interface the IPSec tunnel will apply to.

WAN1: Select interface WAN1

WAN2: Select interface WAN2

Auto: The device will automatically apply the tunnel to WAN1 or WAN2 depending on which WAN interface is active when the IPSec tunnel is being established. Note. Auto only applies to Fail Over mode. For Load Balance mode, please do not select "Auto". In Load Balance mode, Auto will be forced to WAN1

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interface if Auto is selected.

Local: This section configures the local host.

ID: This is the identity type of the local router or host. Choose from the following four options:

WAN IP Address: Automatically use the current WAN Address as ID.

IP Address: Use an IP address format.

FQDN DNS(Fully Qualified Domain Name): Consists of a hostname and domain name. For example, WWW.VPN.COM is a FQDN. WWW is the host name,

VPN.COM is the domain name. When you enter the FQDN of the local host, the router will automatically seek the IP address of the FQDN.

FQUN E-Mail(Fully Qualified User Name): Consists of a username and its domain name. For example, [email protected] is a FQUN. "user" is the username and

"vpn.com" is the domain name.

Data: Enter the ID data using the specific ID type.

Network: Set the IP address, IP range, subnet, or address range of the local network.

Any Local Address: Will enable any local address on the network.

Subnet: The subnet of the local network. Selecting this option enables you to enter an IP address and netmask.

IP Range: The IP Range of the local network.

Single Address: The IP address of the local host.

Remote: This section configures the remote host.

Secure Gateway Address (or Domain Name): The IP address or hostname of the remote VPN device that is connected and establishes a VPN tunnel.

ID: The identity type of the local host. Choose from the following three options:

Remote IP Address: Automatically use the remote gateway Address as ID with ID type – IP Address.

IP Address: Use an IP address format.

FQDN DNS(Fully Qualified Domain Name): Consists of a hostname and domain name. For example, WWW.VPN.COM is a FQDN. WWW is the host name,

VPN.COM is the domain name. When you enter the FQDN of the local host, the router will automatically seek the IP address of the FQDN.

FQUN E-Mail(Fully Qualified User Name): Consists of a username and its domain name. For example, [email protected] is a FQUN. "user" is the username and

"vpn.com" is the domain name.

Data: Enter the ID data using the specific ID type.

Network: Set the subnet, IP Range, single address, or gateway address of the remote network.

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Any Local Address: Will enable any local address on the network.

Subnet: The subnet of the remote network. Selecting this option allows you to enter an IP address and netmask.

IP Range: The IP Range of the remote network.

Single Address: The IP address of the remote host.

Proposal:

Secure Association (SA): SA is a method of establishing a security policy between two points. There are three methods of creating SA, each varying in degrees of security and speed of negotiation:

Main Mode: Uses the automated Internet Key Exchange (IKE) setup; most secure method with the highest level of security.

Aggressive Mode: Uses the automated Internet Key Exchange (IKE) setup; mid-level security. Speed is faster than Main mode.

Manual Key: Standard level of security. It is the fastest of the three methods.

Method: There are two methods of checking the authentication information, AH

(Authentication Header) and ESP (Encapsulating Security Payload). Use ESP for greater security so that data will be encrypted and authenticated. AH data will be authenticated but not encrypted.

Encryption Protocol: Select the encryption method from the pull-down menu.

There are several options: DES, 3DES, and AES (128, 192 and 256). 3DES and AES are more powerful but increase latency.

DES: Stands for Data Encryption Standard. It uses a 56-bit encryption method.

3DES: Stands for Triple Data Encryption Standard. It uses a 168-bit encryption method.

AES: Stands for Advanced Encryption Standard. You can use 128, 192 or

256 bits as encryption method.

Authentication Protocol: Authentication establishes data integrity and ensures it is not tampered with while in transit. There are two options: Message Digest 5

(MD5), and Secure Hash Algorithm (SHA1). While slower, SHA1 is more resistant to brute-force attacks than MD5.

MD5: A one-way hashing algorithm that produces a 128−bit hash.

SHA1: A one-way hashing algorithm that produces a 160−bit hash.

Perfect Forward Secure: Choose whether to enable PFS using Diffie-Hellman public-key cryptography to change encryption keys during the second phase of VPN negotiation. This function will provide better security, but extends the VPN

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negotiation time. Diffie-Hellman is a public-key cryptography protocol that allows two parties to establish a shared secret over the Internet.

Pre-shared Key: This is for the Internet Key Exchange (IKE) protocol. IKE is used to establish a shared security policy and authenticated keys for services (such as IPSec) that require a key. Before any IPSec traffic can be passed, each router must be able to verify the identity of its peer. This can be done by manually entering the pre-shared key into both sides (router or hosts).

IKE Life Time: Allows you to specify the timer interval for renegotiation of the

IKE security association. The value is in seconds, eg. 28800 seconds = 8 hours.

Key Life Time: Allows you to specify the timer interval for renegotiation of another key. The value is in seconds eg. 3600 seconds = 1 hour.

Netbios Broadcast: Allows BiGuard to send local Netbios Broadcast packet through the IPSec Tunnel, please select Enable or Disable.

DPD Setting: DPD, Dead Peer Detection.

DPD Function: Select Enable or Disable DPD function.

Detection Interval: please input the interval time to send out DPD packet.

Idle Timeout: Please input the consecutive no response time to disconnect this tunnel.

Click the Apply button to save your changes.

After you have created the IPSec connection, the account information will be displayed.

Name: This is the user-defined name of the connection.

Enable: This function activates or deactivates the IPSec connection.

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Local Subnet: Displays IP address and subnet of the local network.

Remote Subnet: Displays IP address and subnet of the remote network.

Remote Gateway: This is the IP address or Domain Name of the remote VPN device that is connected and has an established IPSec tunnel.

IPSec Proposal: This is the selected IPSec security method.

4.4.6.2 PPTP

PPTP is a set of protocols that enable Virtual Private Networks (VPN). VPN is a way to establish secured communication tunnels to an organization’s network via the

Internet.

PPTP function: Select Enable to activate PPTP Server. Disable to deactivate PPTP

Server function.

Auth. Type: The authentication type, Pap or Chap, PaP, Chap.

Data Encryption: Select Enable or Disable the Data Encryption.

Encryption Key Length: Auto, 40 bits or 128 bits.

Peer Encryption Mode: Only Stateless or Allow Stateless and Stateful.

IP Addresses Assigned to Peer Start from: 192.168.1.x: please input the IP assigned range from 1 ~ 254 (except BiGuard 50G’s LAN IP address with 192.168.1.254 as

BiGuard 50G’s default LAN IP address and IP pool range of DHCP server settings with 100~199 as BiGuard 50G’s default DHCP IP pool range.)

Idle Timeout “ ” Min: Specify the time for remote peer to be disconnected without any activities, from 0~120.

Click Create to create a new PPTP VPN connection account.

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Connection Name: A user-defined name for the connection.

Tunnel: Select Enable to activate this tunnel. Select Disable to deactivate this tunnel.

Username: Please input the username for this account.

Password: Please input the password for this account.

Retype Password: Please repeat the same password as previous field.

Connection Type: Select Remote Access for single user, Select LAN to LAN for remote gateway.

Peer Network IP: Please input the IP for remote network.

Peer Netmask: Please input the Netmask for remote network.

Netbios Broadcast: Allows BiGuard to send local Netbios Broadcast packets through the PPTP Tunnel, please select Enable or Disable.

4.4.7 QoS

BiGuard 50G can optimize your bandwidth by assigning priority to both inbound and outbound data with QoS. This menu allows you to configure QoS for both inbound and outbound traffic.

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The first menu screen gives you an overview of which WAN ports currently have QoS active, and the bandwidth settings for each.

WAN1 Outbound:

QoS Function: QoS status for WAN1 outbound. Select Enable to activate QoS for

WAN1’s outgoing traffic. Select Disable to deactivate.

Max ISP Bandwidth: The maximum bandwidth afforded by the ISP for WAN1’s outbound traffic.

WAN1 Inbound:

QoS Function: QoS status for WAN1 inbound. Select Enable to activate QoS for

WAN1’s incoming traffic. Select Disable to deactivate.

Max ISP Bandwidth: The maximum bandwidth afforded by the ISP for WAN1’s inbound traffic.

WAN2 Outbound:

QoS Function: QoS Status for WAN2 outbound. Select Enable to activate QoS for

WAN2’s outgoing traffic. Select Disable to deactivate.

Max ISP Bandwidth: The maximum bandwidth afforded by the ISP for WAN2’s outbound traffic.

WAN2 Inbound:

QoS Function: QoS Status for WAN2 inbound. Select Enable to activate QoS for

WAN2’s incoming traffic. Select Disable to deactivate.

Max ISP Bandwidth: The maximum bandwidth afforded by the ISP for WAN2’s inbound traffic.

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Creating a New QoS Rule

To get started using QoS, you will need to establish QoS rules. These rules tell

BiGuard 50G how to handle both incoming and outgoing traffic. The following example shows you how to configure WAN1 Outbound QoS. Configuring the other traffic types follows the same process.

To make a new rule, click Rule Table. This will bring you to the Rule Table which displays the rules currently in effect.

Next, click Create to open the QoS Rule Configuration window.

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Interface: The current traffic type. This can be WAN1 (outbound, inbound) and

WAN2 (outbound, inbound).

Application: User defined application name for the current rule.

Guaranteed: The guaranteed amount of bandwidth for this rule as a percentage.

Maximum: The maximum amount of bandwidth for this rule as a percentage.

Priority: The priority assigned to this service. Select a value from 0 to 6, 0 being highest.

DSCP Marking: Used to classify traffic. Select from Best Effort, Premium, Gold

Service (High Medium, Low), Silver (H,M,L), and Bronze (H,M,L).

Address Type: The type of address this rule applies to. Select IP Address or MAC

Address.

Bandwidth Type:

Shared Bandwidth: Please select Shared Bandwidth if you would like the specified bandwidth to be shared for all IP address in specified IP range.

Bandwidth per source IP Address: Please select Bandwidth per source IP

Address if you would like the specified bandwidth to be applied individually per source IP address in specified IP range.

For IP Address:

Source IP Address Range: The range of source IP Addresses this rule applies to.

Destination IP Address Range: The range of destination IP Addresses this rule applies to.

Source Port Range: The range of source ports this rule applies to.

Destination Port Range: The range of destination ports this rule applies to.

Helper: You could also select the application type you would like to apply for automatic input.

DSCP: DSCP matching is used to identify traffic for the rule. This option will only be applied to the packets whose DSCP filed’s IP header matches the criteria selected from the drop-down menu.

Schedule: Allows you select a time for this QoS policy to be applied to. This option allows Admin to easily control the QoS of a particular user using a particular IP by using several Schedule events for the different parts of the day. (Look for Chapter

4.4.9.4 Schedule on how to create a new schedule)

Candidate: Clicking on Candidate will present you with a pop-up window of the available Schedule policies set.

Click Apply to save your changes.

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For MAC Address:

Source MAC Address: The source MAC Address of the device this rule applies to.

Candidates: You can also select the Candidates which are referred from the ARP table for automatic input.

Source Port Range: The range of source ports this rule applies to.

Destination Port Range: The range of destination ports this rule applies to.

Helper: You could also select the application type you would like to apply for automatic input.

4.4.8 Virtual Server

In TCP/IP and UDP networks, a port is a 16-bit number used to identify which application program (usually a server) incoming connections should be delivered to.

Some ports have numbers that are pre-assigned to them by the Internet Assigned

Numbers Authority (IANA), and these are referred to as "well-known ports". Servers follow the well-known port assignments so clients can locate them.

If you wish to run a server on your network that can be accessed from the WAN (i.e. from other machines on the Internet that are outside your local network), or any application that can accept incoming connections (e.g. peer-to-peer applications) and are using NAT (Network Address Translation), then you will usually need to

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configure your router to forward these incoming connection attempts using specific ports to the PC on your network running the application. You will also need to use port forwarding if you want to host an online game server. The reason for this is that when using NAT, your publicly accessible IP address will be used by and point to your router, which then needs to deliver all traffic to the private IP addresses used by your PCs. Please see the WAN Configuration section of this manual for more information on NAT.

BiGuard 50G can also be configured as a virtual server so that remote users accessing services such as Web or FTP services via the public (WAN) IP address can be automatically redirected to local servers in the LAN network. Depending on the requested service (TCP/UDP port number), the device redirects the external service request to the appropriate server within the LAN network.

4.4.8.1 DMZ

The DMZ Host is a local computer exposed to the Internet. When setting a particular internal IP address as the DMZ Host, all incoming packets will be checked by the

Firewall and NAT algorithms then passed to the DMZ host, when a packet received does not use a port number used by any other Virtual Server entries.

Caution: Such Local computer exposure to the Internet may face a variety of security risks.

Enable DMZ function:

Enable: Activates your router’s DMZ function.

Disable: Default setting. Disables the DMZ function.

DMZ IP Address: Give a static IP address to the DMZ Host when the Enable radio button is selected. Be aware this IP will be exposed to the WAN/Internet.

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Candidates: You can also select the Candidates which are referred from the ARP table for automatic input.

Select the Apply button to apply your changes.

4.4.8.2 Port Forwarding Table

Because NAT can act as a "natural" Internet firewall, your router protects your network from being accessed by outside users, as all incoming connection attempts will point to your router unless you specifically create Virtual Server entries to forward those ports to a PC on your network.

When your router needs to allow outside users to access internal servers, e.g. a web server, FTP server, Email server or game server, the router can act as a "virtual server". You can set up a local server with a specific port number for the service to use, e.g. web/HTTP (port 80), FTP (port 21), Telnet (port 23), SMTP (port 25), or

POP3 (port 110). When an incoming access request is received, it will be forwarded to the corresponding internal server.

Click Create to add a new port forwarding rule.

This function allows any incoming data addressed to a range of service port numbers (from the Internet/WAN Port) to be re-directed to a particular LAN private/internal IP address. This option gives you the ability to handle applications that use more than one port such as games and audio/video conferencing.

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Application: User defined application name for the current rule.

Helper: You could also select the application type you would like to apply for automatic input.

Protocol type: please select protocol type

External Port: Enter the port number of the service that will be sent to the Internal

IP address.

Redirect Port: Enter a new port number for the service that will be sent to the

Internal IP address.

External IP Address: Please click candidate to select the WAN interface or the

WAN IP address.

Internal IP Address: Enter the LAN server/host IP address that the service request from the Internet will be sent to.

Candidates: You can also select the Candidates which are referred from the

ARP table for automatic input.

NOTE: You need to give your LAN server/host a static IP address for the Virtual

Server to work properly.

Click Apply to save your changes.

Using port forwarding does have security implications, as outside users will be able to connect to PCs on your network. For this reason, using specific Virtual Server entries just for the ports your application requires, instead of using DMZ is recommended.

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4.4.9 Advanced

Configuration options within the Advanced section are for users who wish to take advantage of the more advanced features of BiGuard 50G. Users who do not understand the features should not attempt to reconfigure their router, unless advised to do so by support staff.

There are five items within the Advanced section: Static Route, Dynamic DNS, and Device Management.

4.4.9.1 Static Route

The static route settings enable the router to route IP packets to another network

(subnet). The routing table stores the routing information so the router knows where to redirect the IP packets.

Click on Static Route and then click Create to add a routing table.

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Rule: Select Enable to activate this rule, Disable to deactivate this rule.

Destination: This is the destination subnet IP address.

Netmask: This is the subnet mask of the destination IP addresses based on above destination subnet IP.

Gateway: This is the gateway IP address to which packets are to be forwarded.

Interface: Select the interface through which packets are to be forwarded.

Cost: This is the same meaning as Hop.

Click Apply to save your changes.

4.4.9.2 Dynamic DNS

The Dynamic DNS function allows you to alias a dynamic IP address to a static hostname, allowing users whose ISP does not assign them a static IP address to use a domain name. This is especially useful when hosting servers via your WAN connection, so that anyone wishing to connect to you may use your domain name, rather than having to use a dynamic IP address that changes periodically. This dynamic IP address is the WAN1/WAN2 IP address of the router, which is assigned to you by your ISP. Click Edit in the Dynamic DNS Settings Table to set related parameters for a specific interface.

You will first need to register and establish an account with the Dynamic DNS provider using their website,

Example: DYNDNS http://www.dyndns.org/

(BiGuard 50G supports several Dynamic DNS providers , such as www.dyndns.org

, www.orgdns.org

, www.dhs.org

, www.dyns.cx

, www.3domain.hk

, www.dyndns.org

, www.3322.org

).

Click Edit on either WAN1 or WAN2 to edit the Dynamic DNS Server.

After receiving the information, on the Domain Name, Username and Password,

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please fill it in the blank space below.

Dynamic DNS:

Disable: Check to disable the Dynamic DNS function.

Enable: Check to enable the Dynamic DNS function. The following fields will be activated and required:

Dynamic DNS Server: Select the DDNS service you have established an account with.

Wildcard: Select this check box to enable the DYNDNS Wildcard.

Domain Name: Enter your registered domain name for this service.

Username: Enter your registered user name for this service.

Password: Enter your registered password for this service.

Click Apply to save your changes.

4.4.9.3 Device Management

The Device Management Advanced Configuration settings allow you to control your router’s security options and device monitoring features.

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Device Name

Name: Enter a name for this device.

Web Server Settings

HTTP Port: This is the port number the router’s embedded web server (for web-based configuration) will use. The default value is the standard HTTP port, 80.

Users may specify an alternative if, for example, they are running a web server on a PC within their LAN.

Management IP Address: You may specify an IP address allowed to logon and access the router’s web server. Setting the IP address to 0.0.0.0 will disable IP address restrictions, allowing users to login from any IP address.

Expire to auto-logout: Specify a time frame for the system to auto-logout the user’s configuration session.

Example: User A changes HTTP port number to 100, specifies their own IP address of 192.168.1.100 and sets the logout time to be 100 seconds. The router will only allow User A access from the IP address 192.168.1.100 to logon to the Web

GUI by typing: http://192.168.1.254:100 in their web browser. After 100 seconds, the device will automatically logout User A.

SNMP Access Control

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SNMP Function: Select Enable to activate this function, Disable to deactivate this function.

SNMP V1 and V2

Read Community: Input the string for Read community to match your SNMP software.

Write Community: Input the string for Write community to match your SNMP software.

Trap Community: Input the string for Trap community to match your SNMP software.

IP Address: Input the device IP address with SNMP software installed.

SNMP V3

Username: Input the Username for your SNMP software.

Password: Input the Password for your SNMP software.

Access Right: Select Read to allow your SNMP software to read the information.

Select Read/Write to allow your SNMP software to read and write the information.

4.4.9.4 Schedule

The Time Schedule helps you to manage your Internet connection. In each time profile, you may schedule specific day(s) i.e. Monday through Sunday to restrict or allowing the usage of the Internet by users or applications (QoS and Packet Filter).

This Time Schedule correlates closely with router’s time, since router does not have a real time clock on board; it uses the Simple Network Time Protocol (SNTP) to get the current time from an SNTP server from the Internet. Refer to Time Zone for details. You router time should correspond with your local time. If the time is not set correctly, your Time Schedule will not function properly.

The Schedule Table lists the Scheduled events you have set. You can only Edit or

Delete new schedules that you have created. Edit is very similar to Create, except you do not create a new schedule but instead change the settings for the old one.

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Click Create to create a new schedule.

Name: A user-define description to identify this time portfolio.

Day: The default is set from Monday through Friday. You may specify the days for the schedule to be applied.

Start Time: The default is set at 8:00 AM. You may specify the start time of the schedule.

End Time: The default is set at 18:00 (6:00PM). You may specify the end time of the schedule. Select the Apply button to apply your changes.

5. Log & Email Alert

Log & Email Alert allows you to configure the router to determine what events should be logged or not. You can also set it so that you can receive an Email Alert periodically so you can monitor the status of your router even when away from officer or work.

There are three items within the Log & E-mail Alert section: Log Configuration,

System Log Server, and E-Mail Alert.

5.1 Log Configuration

The BiGuard 50G incorporates industry-standard alert protocols for capturing network activity information. The information can then be written to a log, sent to an external server, or to a selected E-mail address.

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Select System Log to capture to a log.

Select Syslog Server to capture and send to a specified external server.

Select Email Alert to send information log to a pre-specified E-mail account.

5.2 System Log Server

This function allows BiGuard 50G to send system logs to an external Syslog Server.

Syslog is an industry-standard protocol used to capture information about network activity. To enable this function, select the Enable radio button and enter your

Syslog server IP address in the Log Server IP Address field. Click Apply to save your changes.

To disable this feature, simply select the Disable radio button and click Apply.

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5.3 E-mail Alert

The Email Alert function allows a log of security-related events (such as System Log and IPSec Log) to be sent to a specified email address.

Email Alert: You may enable or disable this function by selecting the appropriate radio button.

Recipient’s Email Address: Enter the email address where you wish the alert logs to be sent.

SMTP Mail Server: Enter your email account’s outgoing mail server. It may be an

IP address or a domain name.

Sender’s Email Address: Enter the email address where you wish the alert logs to be sent by which address.

Mail Server Login: some SMTP servers may request users to login before serving.

Select Enable to activate SMTP server login function, disable to deactivate.

Username: Input the SMTP server’s username.

Password: Input the SMTP server’s password.

Alert via Email when: Select the frequency of each email update. Choose one of the five options:

Immediately: The router will send an alert immediately.

Hourly: The router will send an alert once every hour.

Daily: The router will send an alert once a day. The exact time can be specified using the pull down menu.

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Weekly: The router will send an alert once a week.

When log is full: The router will send an alert only when the log is full.

6 Language

Language provides 3 different type of language to be displayed on the interface

(currently supporting English, Simplified Chinese and Traditional Chinese).

Note: If you accidentally mistakenly clicked on the Chinese language, don’t panic.

Just locate where “language” link should be and click on the 1 st

item under Language which will always be English.

There are three items within the Language section: English, Simplified Chinese, and Traditional Chinese.

6.1 English

Clicking on the English link will change all the text into English.

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6.2 Simplified Chinese

Clicking on the Simplified Chinese link will change all the text into Simplified

Chinese.

6.3 Traditional Chinese

Clicking on the Traditional Chinese link will change all the text into Traditional

Chinese.

7 Save Configuration To Flash

After changing the router’s configuration settings, you must save all of the configuration parameters to flash memory to avoid them being lost after turning off or resetting your router. Click Apply to write your new configuration to flash memory.

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8 Logout

To exit the router’s web interface, click Logout. Please ensure that you have saved your configuration settings before you logout.

Be aware that the router is restricted to only one PC accessing the web configuration interface at a time. Once a PC has logged into the web interface, other PCs cannot gain access until the current PC has logged out. If the previous PC forgets to logout, the second PC can access the page after a user-defined period (5 minutes by default). You can modify this value using the Advanced > Device Management section of the Web Configuration Interface. Please see the Advanced section of this manual for more information.

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Chapter 5: Troubleshooting

5.1 Basic Functionality

This section deals with issues regarding your BiGuard 50G’s basic functions.

5.1.1 Router Won’t Turn On

If the Power and other LEDs fail to light when your BiGuard 50G is turned on:

- Make sure that the power cord is properly connected to your firewall and that the power supply adapter is properly connected to a functioning power outlet.

- Check that you are using the 12VDC power adapter supplied by Billion for this product.

If the error persists, you may have a hardware problem, and should contact technical support.

5.1.2 LEDs Never Turn Off

When your BiGuard 50G is turned on, the LEDs turn on for about 10 seconds and then turn off. If all the LEDs stay on, there may be a hardware problem.

If all LEDs are still on one minute after powering up:

- Cycle the power to see if the router recovers.

- Clear the configuration to factory defaults.

If the error persists, you may have a hardware problem, and should contact technical support.

5.1.3 LAN or Internet Port Not On

If either the LAN LEDs or Internet LED do not light when the Ethernet connection is made, check the following:

- Make sure each Ethernet cable connection is secure at the firewall and at the hub

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or workstation.

- Make sure that power is turned on to the connected hub or workstation.

- Be sure you are using the correct cable. When connecting the firewall’s Internet port to a cable or DSL modem, use the cable that was supplied with the cable or DSL modem. This cable could be a standard straight-through Ethernet cable or an

Ethernet crossover cable.

5.1.4 Forgot My Password

Try entering the default User Name and Password:

User Name: admin

Password: admin

Please note that both the User Name and Password are case-sensitive.

If this fails, you can restore your BiGuard 50G to its factory default settings by holding the Reset button on the back of your router until the Status LED begins to blink. Then enter the default User Name and Password to access your router.

5.2 LAN Interface

Refer to this section for issues relating to BiGuard 50G’s LAN Interface.

5.2.1 Can’t Access BiGuard 50G from the LAN

If there is no response from BiGuard 50G from the LAN:

- Check your Ethernet cable types and each connection.

- Make sure the computer’s Ethernet adapter is installed and functioning properly.

If the error persists, you may have a hardware problem, and should contact technical support.

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5.2.2 Can’t Ping Any PC on the LAN

If PCs connected to the LAN cannot be pinged:

- Check the 10/100 LAN LEDs on BiGuard 50G’s front panel. One of these LEDs should be on. If they are both off, check the cables between BiGuard 50G and the hub or PC.

- Check the corresponding LAN LEDs on your PC’s Ethernet device are on.

- Make sure that driver software for your PC’s Ethernet adapter and TCP/IP software is correctly installed and configured on your PC.

- Verify the IP address and the subnet mask of BiGuard 50G and the computers are on the same subnet.

5.2.3 Can’t Access Web Configuration Interface

If you are having trouble accessing BiGuard 50G’s Web Configuration Interface from a PC connected to the network:

- Check the connection between the PC and the router.

- Make sure your PC’s IP address is on the same subnet as the router.

- If your BiGuard 50G’s IP address has changed and you don’t know the current IP address, reset the router to factory defaults by holding the Reset button on the back of your router for 6 seconds. This will reset the router’s IP address to

192.168.1.254.

- Check to see if your browser had Java, JavaScript, or ActiveX enabled. If you are using Internet Explorer, click Refresh to ensure that the Java applet is loaded.

- Try closing the browser and re-launching it.

- Make sure you are using the correct User Name and Password. User Names and

Passwords are case-sensitive, so make sure that CAPS LOCK is not on when entering this information.

- Try clearing your browser’s cache.

1. With Internet Explorer, click Tools > Internet Options.

2. Under the General tab, click Delete Files.

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3. Make sure that the Delete All Offline Content checkbox is checked, and click

OK.

4. Click OK under Internet Options to close the dialogue.

- In Windows, type arp –d at the command prompt to clear you computer’s ARP table.

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5.2.3.1 Pop-up Windows

To use the Web Configuration Interface, you need to disable pop-up blocking. You can either disable pop-up blocking, which is enabled by default in Windows XP

Service Pack 2, or create an exception for your BiGuard 50G’s IP address.

Disabling All Pop-ups

In Internet Explorer, select Tools > Pop-up Blocker and select Turn Off Pop-up

Blocker.

You can also check if pop-up blocking is disabled in the Pop-up Blocker section in the Privacy tab of the Internet Options dialogue.

1. In Internet Explorer, select Tools > Internet Options.

2. Under the Privacy tab, clear the Block pop-ups checkbox and click Apply to save your changes.

Enabling Pop-up Blockers with Exceptions

If you only want to allow pop-up windows with your BiGuard 50G:

1. In Internet Explorer, select Tools > Internet Options.

2. Under the Privacy tab, click Settings to open the Pop-up Blocker Settings dialogue.

3. Enter the IP address of your router.

4. Click Add to add the IP address to the list of Allowed sites.

5. Click Close to return to the Privacy tab of the Internet Options dialogue.

6. Click Apply to save your changes.

5.2.3.2 Javascripts

If the Web Configuration Interface is not displaying properly in your browser, check to make sure that JavaScripts are allowed.

1. In Internet Explorer, click Tools > Internet Options.

2. Under the Security tab, click Custom Level.

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3. Under Scripting, check to see if Active scripting is set to Enable.

4. Ensure that Scripting of Java applets is set to Enabled.

5. Click OK to close the dialogue.

5.2.3.3 Java Permissions

The following Java Permissions should also be given for the Web Configuration

Interface to display properly:

1. In Internet Explorer, click Tools > Internet Options.

2. Under the Security tab, click Custom Level.

3. Under Microsoft VM*, make sure that a safety level for Java permissions is selected.

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4. Click OK to close the dialogue.

NOTE: If Java from Sun Microsystems is installed, scroll down to Java (Sun) and ensure that the checkbox is filled.

5.3 WAN Interface

If you are having problems with the WAN Interface, refer to the tips below.

5.3.1 Can’t Get WAN IP Address from the ISP

If the WAN IP address cannot be obtained from the ISP:

- If you are using PPPoE or PPTP encapsulation, you will need a user name and password. Ensure that you have entered the correct Service Type, User Name, and Password. Note that user names and passwords are case-sensitive.

- If your ISP requires MAC address authentication, clone the MAC address from your

PC on the LAN as BiGuard 50G’s WAN MAC address.

- If your ISP requires host name authentication, configure your PC’s name as

BiGuard 50G’s system name.

5.4 ISP Connection

Unless you have been assigned a static IP address by your ISP, your BiGuard 50G will need to request an IP address from the ISP in order to access the Internet. If your BiGuard 50G is unable to access the Internet, first determine if your router is able to obtain a WAN IP address from the ISP.

To check the WAN IP address:

1. Open your browser and choose an external site (i.e.

www.billion.com

).

2. Access the Web Configuration Interface by entering your router’s IP address

(default is 192.168.1.254).

3. The WAN IP Status is displayed on the first page.

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4. Check to see that the WAN port is properly connected to the ISP. If a Connected

by (x) where (x) is your connection method is not shown, your router has not successfully obtained an IP address from your ISP.

If an IP address cannot be obtained:

1. Turn off the power to your cable or DSL modem.

2. Turn off the power to your BiGuard 50G.

3. Wait five minutes and power on your cable or DSL modem.

4. When the modem has finished synchronizing with the ISP (generally shown by

LEDs on the modem), turn on the power to your router.

If an IP address still cannot be obtained:

- Your ISP may require a login program. Consult your ISP whether they require

PPPoE or some other type of login.

- If your ISP requires a login, check to see that your User Name and Password are entered correctly.

- Your ISP may check for your PC’s host name. Assign the PC Host Name of your ISP account as your PC’s host name on the router.

- Your ISP may check for your PCs MAC address. Either inform your ISP that you have purchased a new network device or ask them to use your router’s MAC address, or configure your router to spoof your PC’s MAC address.

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If an IP address can be obtained, but your PC cannot load any web pages from the

Internet:

- Your PC may not recognize DNS server addresses. Configure your PC manually with DNS addresses.

- Your PC may not have the router correctly configured as its TCP/IP gateway.

5.5 Problems with Date and Time

If the date and time is not being displayed correctly, be sure to set it for your

BiGuard 50G via the Web Configuration Interface. Both date and time can be found under Configuration > System > Time Zone.

5.6 Restoring Factory Defaults

You can restore your BiGuard 50G to its factory settings by holding the Reset button on the back of your router until the Status LED begins to blink. This will reset your router to its default settings.

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Appendix A: Product Specifications

Availability and Resilience

- Dual-WAN ports

- Load balancing for increased bandwidth of inbound and outbound traffic

- Automatic failover to redirect the packet when one broadband connection is broken. It will keep your Internet connection always online whenever one connection should fail.

Virtual Private Network

- IPSec VPN, supports up to 30 IPSec tunnels

- IPSec VPN performance is up to 30 Mbps

- PPTP VPN, support up to 4 PPTP tunnels

- PPTP VPN performance is up to 10 Mbps

- Manual key, Internet Key Exchange (IKE) authentication and Key Management

- Authentication (MD5 / SHA-1)

- DES/3DES encryption

- AES 128/192/256 encryption

- IP Authentication Header (AH)

- IP Encapsulating Security Payload (ESP)

- IPSec VPN concentrator

- Dynamic IPSec VPN (FQDN) support

- IPSec NAT Traveersal (IPSec NAT-T)

- IPSec DPD (Dead Peer Detection)

- Supports remote access and office-to-office IPSec Connections

- PPTP Server

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- Netbios over VPN

Firewall

- Stateful Packet Inspection (SPI) and Denial of Service (DoS) prevention

- Packet filter un-permitted inbound (WAN)/Inbound

(LAN) Internet access by IP address, port number and packet type

- Email alert and logs of attack

- MAC Address Filtering

- Intrusion detection

Content Filtering

- URL Filter settings prevent user access to certain sites on the Internet

- Java Applet/Active X/Cookie Blocking

Quality of Service Control

- Supports DiffServ approach

- Traffic prioritization and bandwidth management based-on IP protocol, port number and IP or MAC address

Web-Based Management

- Easy-to-use WEB interface

- Firmware upgradeable via WEB interface

- Local and remote management via HTTP & HTTPS

Network Protocols and Features

- Web Diagnostics

- System Logs

- PPPoE, PPTP, Big Pond and DHCP client connections to the ISP

- NAT, static routing and RIP-2

- Dynamic Domain Name System (DDNS)

- Virtual Server and DMZ

- DHCP Server

- NTP

- SMTP Client

- SNMP

- SIP Pass-through

- Multiple NAT (Multiple LAN & Multiple WAN)

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Physical Interface

Ethernet WAN 2 ports (10/100 Base-T), support Auto- Crossover (MDI/MDIX)

Ethernet LAN 8 ports (10/100 Base-T) switch support Auto- Crossover (MDI/MDIX)

Physical Specifications

Dimensions: 18.98" x 6.54" x 1.77" (482mm x 166 mm x 45mm, with Bracket)

9.84" x 6.54" x 1.38" (250mm x 166 mm x 35mm, non Bracket)

Power Requirement

Input: 12VDC, 1A

Operating Environment

- Operating temperature: 0 ~ 40 degrees Celsius

- Storage temperature: -20 ~ 70 degrees Celsius

- Humidity: 20 ~ 95% non-condensing

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Appendix B: Customer Support

Most problems can be solved by referring to the Troubleshooting section in the

User’s Manual. If you cannot resolve the problem with the Troubleshooting chapter, please contact the dealer where you purchased this product.

Contact Billion

Worldwide

http://www.billion.com/

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Appendix C: FCC Interference Statement

This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:

- This device may not cause harmful interference.

- This device must accept any interference received, including interference that may cause undesired operations.

This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment.

If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and the receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Notice:

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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Appendix D: Network, Routing, and Firewall Basics

D.1 Network Basics

D.1.1 IP Addresses

With the number of TCP/IP networks interconnected across the globe, ensuring that transmitted data reaches the correct destination requires each computer on the

Internet has a unique identifier. This identifier is known as the IP address. The

Internet Protocol (IP) uses a 32-bit address structure, and the address is usually written in dot notation.

A typical IP address looks like this:

198.25.12.8

The 32 bits of the address are subdivided into two parts. The first part of the address identifies the network, while the second part identifies the host node or station on the network. How the address is divided depends on the address range and the application.

The five standard IP address classes each have different methods to determine the network and host sections of the address, which makes multiple hosts on a network possible. TCP/IP software identifies each address class by reading a unique bit pattern that precedes each address type. Once the address class has been recognized, the software can then correctly determine the addresses’ host section.

With this structure, IP addresses can uniquely identify each network and node.

D.1.1.1 Net mask

With each address class, the size of the two subdivided parts (network address and host address) is implied by the class. A net mask associated with an IP address can also express this partitioning. A net mask 32-bit quantity yields the network address when combined with an IP address. As an example, the net masks for Class A, B, and C are 255.0.0.0, 255.255.0.0, and 255.255.255.0 respectively.

Instead of dotted-decimal notation, the net mask can also be written in terms of the number of ones from the left. This number is added to the IP address, following a

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back slash (/). For example, a typical Class C address could be written as

192.168.234.245/24, which means that the net mask is 24 ones followed by 8 zeros.

(11111111 11111111 11111111 00000000).

D.1.1.2 Subnet Addressing

Subnet addressing enables the split of one IP network address into multiple physical networks. These smaller networks are called subnetworks, and these subnetworks can make efficient use of each address when compared to needing a different network number at each end of a routed link. This technique is especially useful in smaller network environments, such as small office LANs.

A Class B address provides 16 bits of node numbers, which enable 65,536 nodes.

Since most organizations don’t require such a large number of nodes, the free bits can be reassigned with subnet addressing.

Multiple Class C addresses can be made from a Class B address. For example, the IP address of 172.20.0.0 allows eight extra bits to use as a subnet address, since node addresses are limited to a maximum of 255. The IP address of 172.20.52.212 would be read as IP network address 172.20, subnet number 52, and node number 212.

Besides extending the number of available addresses, this technique also allows a network manager to design an address scheme for the network by using different subnets. This can be useful when trying to distinguish other geographical locations in the network or other departments in the organization.

D.1.1.3 Private IP Addresses

When isolated from the Internet, the hosts on your local network may be assigned

IP addresses with no conflicts. However, the Internet Assigned Numbers Authority

(IANA) has reserved several blocks of IP addresses for private networks. These include:

10.0.0.0 - 10.255.255.255

172.16.0.0 - 172.16.255.255

192.168.0.0 - 192.168.255.255

When assigning IP addresses to your private network, be sure to use IP addresses

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from these ranges.

D.1.2 Network Address Translation (NAT)

Traditionally, multiple PCs that needed simultaneous Internet access also required a range of IP addresses from the Internet Service Provider (ISP). Not only was this method very costly, but the number of available IP addresses for PCs is limited.

Instead, BiGuard 50G uses a type of address sharing called Network Address

Translation to grant Internet access to several PCs on the same network through the same Internet account. This method translates internal IP addresses to a single address that is unique on the Internet. This unique address can either be fixed or dynamic, depending on the type of Internet account, and the internal LAN IP addresses may also be either private or registered addresses.

NAT also offers firewall-like protection to your network, since internal LAN addresses are shielded from the public Internet. All incoming traffic to the public IP address is handled by the router, which means added security for your network from intruders. If a particular PC on your LAN requires access from outside PCs, you can use port forwarding to accomplish this. For information on how to configure port forwarding on BiGuard 50G, refer to the Virtual Server section of Chapter 4:

Router Configuration.

D.1.3 Dynamic Host Configuration Protocol (DHCP)

If the PCs on a LAN require access to the Internet, each PC must be configured with an IP address, a gateway address, and one or more DNS server addresses. Rather than configuring each PC manually, you can instead configure a network device to act as a Dynamic Host Configuration Protocol (DHCP) server. PCs on the network can automatically obtain IP addresses from a list of addresses stored on the DHCP server.

In addition, other information such as gateway and DNS address can also be assigned with a DHCP server. When connecting to the ISP, BiGuard 50G also functions as a DHCP client. BiGuard 50G can automatically obtain an IP address, subnet mask, gateway address, and DNS server addresses if the ISP assigns this information via DHCP.

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D.2 Router Basics

D.2.1 What is a Router?

A router is a device that forwards data packets along networks. A router is connected to at least two networks. Usually, this is a LAN and a WAN that is connected to an ISP network. Routers are located at gateways, the places where two or more networks connect. Routers use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols to communicate with each other and configure the best route between any two hosts.

Routers can vary in performance and scale, the types of physical WAN connection they support, and the number of routing protocols supported. BiGuard 50G offers a convenient and powerful way for small-to-medium businesses to connect their networks.

D.2.2 Why use a Router?

While large bandwidth can easily and inexpensively be provided in a LAN, having high bandwidth between a LAN and the Internet can be prohibitively expensive.

Because of this, Internet access is usually done through a slower WAN link, such as a cable or DSL modem. To efficiently use this slower connection, a router acts as a mechanism for selecting and transmitting data meant for the Internet. By using a router, organizations can enjoy relatively inexpensive Internet access, while maintaining a high-speed local area network.

D.2.3 Routing Information Protocol (RIP)

Routing Information Protocol (RIP) is an interior gateway protocol that specifies how routers exchange routing table information. Routers periodically update each other with RIP, changing their routing tables when necessary.

BiGuard 50G supports the RIP protocol. RIP also supports subnet and multicast protocols. RIP is not required for most home applications.

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D.3 Firewall Basics

D.3.1 What is a Firewall?

Firewalls prevent unauthorized Internet users from accessing private networks connected to the Internet. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria. With the functionality of a NAT router, the firewall adds features that deal with outside Internet intrusion and attacks. When an attack or intrusion is detected, the firewall can be configured to log the intrusion attempt, and can also notify the administrator of the incident. With this information, the administrator can work with the ISP to take action against the hacker. Against some types of attacks, the firewall can discard intruder packets, thereby fending off the hacker from the private network.

D.3.1.1 Stateful Packet Inspection

BiGuard 50G uses Stateful Packet Inspection (SPI) to protect your network from intrusions and attacks. Unlike less sophisticated Internet sharing routers, SPI ensures secure firewall filtering by intercepting incoming packets at the network layer, and analyzing them for state-related information that is associated with all network connections. User-level applications such as Web browsers and FTP can make complex network traffic patterns, which BiGuard 50G analyzes by looking at groups of connection states.

All state information is stored in a central cache. Traffic passing through the firewall is analyzed against these states, and then is either allowed to pass through or rejected.

D.3.1.2 Denial of Service (DoS) Attack

A hacker may be able to prevent your network from operating or communicating by launching a Denial of Service (DoS) attack. The method used for such an attack can be as simple as merely flooding your site with more requests than it can handle. A more sophisticated attack may attempt to exploit some weakness in the operating system used by your router or gateway. Some operating systems can be disrupted by simply sending a packet with incorrect length information.

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D.3.2 Why Use a Firewall?

With a LAN connected to the Internet through a router, there is a chance for hackers to access or disrupt your network. A simple NAT router provides a basic level of protection by shielding your network from the outside Internet. Still, there are ways for more dedicated hackers to either obtain information about your network or disrupt your network’s Internet access. Your BiGuard 50G provides an extra level of protection from such attacks with its built-in firewall.

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Appendix E: Virtual Private Networking

E.1 What is a VPN?

A Virtual Private Network (VPN) is a shared network where private data is segmented from other traffic so that only the intended recipient has access. It allows organizations to securely transmit data over a public medium like the

Internet. VPNs utilize tunnels, which allow data to be safely delivered to the intended recipient.

Because private networks lack data security, IPSec-based VPNs employ encryption technologies that protect a private network from data theft or tampering. These private networks can be implemented over any type of IP network, which allows for excellent flexibility.

E.1.1 VPN Applications

VPNs are traditionally used three ways:

- Extranets: Extranets are secure connections between two or more organizations.

IPSec-based VPNs are ideal for extranet connections, as they can be quickly and inexpensively installed. Extranets are often used to securely share a company’s information with suppliers, vendors, customers, or other businesses.

- Intranets: Intranets are private networks that connect an organization’s locations together. These locations range from a headquarters, to branch offices, to a remote employee’s home. Intranets are often used for email and for sharing applications and files. A firewall protects Intranets from unauthorized access.

- Remote Access: Remote access enables mobile workers to access email and business applications. Remote access VPNs greatly reduce expenses by enabling mobile workers to dial a local Internet connection and then set up a secure

IPSec-based VPN communications to their organization.

E.2 What is IPSec?

Internet Protocol Security (IPSec) is a set of protocols and algorithms that provide

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data authentication, integrity, and confidentiality as data is transferred across IP networks. IPSec provides data security at the IP packet level, and protects against possible security risks by protecting data. IPSec is widely used to establish VPNs.

There are three major functions of IPSec:

- Confidentiality: Conceals data through encryption.

- Integrity: Ensures that contents did not change in transit.

- Authentication: Verifies that packets received are actually from the claimed sender.

E.2.1 IPSec Security Components

IPSec contains three major components:

- Authentication Header (AH): Provides authentication and integrity.

- Encapsulating Security Payload (ESP): Provides confidentiality, authentication, and integrity.

- Internet Key Exchange (IKE): Provides key management and Security Association

(SA) management.

These components are discussed below.

E.2.1.1 Authentication Header (AH)

The Authentication Header (AH) is a protocol that provides authentication and integrity, protecting data from tampering. It provides authentication of either all or part of the contents of a datagram through the addition of a header that is calculated based on the values in the datagram.

The AH can also protect packets from unauthorized re-transmission with anti-replay functionality. The presence of the AH header allows us to verify the integrity of the message, but doesn't encrypt it. Thus, AH provides authentication but not privacy.

ESP protects data confidentiality. Both AH and ESP can be used together for added protection.

A typical AH packet looks like this:

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Next

Header

Payload

Length

SPI

Sequence Number

Reserved

Authentication Data

E.2.1.2 Encapsulating Security Payload (ESP)

Encapsulating Security Payload (ESP) provides privacy for data through encryption.

An encryption algorithm combines the data with a key to encrypt it. It then repackages the data using a special format, and transmits it to the destination. The receiver then decrypts the data using the same algorithm. ESP is usually used with

AH to provide added data security.

ESP divides its fields into three components…

ESP Header: Placed before encrypted data, the ESP Header contains the SPI and

Sequence Number. Its placement depends on whether ESP is used in transport mode or tunnel mode.

ESP Trailer: Placed after the encrypted data, the ESP Trailewwr contains padding that is used to align the encrypted data.

ESP Authentication Data: This contains an Integrity Check Value (ICV) for when

ESP's optional authentication feature is used.

ESP provides authentication, integrity, and confidentiality, which provides data content protection, and protects against data tampering. A typical ESP packet looks like this:

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SPI

Sequence Number

IV

Data

Pad Pad Next

L

Authentication Data

H d

E.2.1.3 Security Associations (SA)

Security Associations are a one-way relationships between sender and receiver that specify IPSec-related parameters. They provide data protection by using the defined IPSec protocols, and allow organizations to control according to the security policy in effect, which resources may communicate securely.

SA is identified by 3 parameters:

- Security Parameters Index (SPI), a locally unique value

- Destination IP Address

- Security Protocol: (AH or ESP, but not both)

There are several other parameters associated with an SA that are stored in a

Security Association database.

E.2.2 IPSec Modes

To exchange data between different types of VPNs, IPSec provides two major modes:

- Tunnel Mode

This mode is used for host-to-host security. Protection extends to the payload of IP data, and the IP addresses of the hosts must be public IP addresses.

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IP AH/E IP TC Dat

Transport Mode

- This mode is used to provide data security between two networks. It provides protection for the entire IP packet and is sent by adding an outer IP header corresponding to the two tunnel end-points. Since tunnel mode hides the original IP header, it provides security of the networks with private IP address space.

IP AH/E TC Dat

E.2.3 Tunnel Mode AH

AH is typically applied to a data packet in the following manner:

Original Packet

IP Header

TCP Data

Packet with IPSec Authentication Header

New IP Header AH Org IP Header

TCP

Authenticated

Data

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E.2.4 Tunnel Mode ESP

Here is an example of a packet with ESP applied:

Original Packet

IP Header TCP Data

Packet with IPSec Encapsulation Security Payload

New IP Header ESP Header Org IP Header

TCP encrypted

Data

Authenticated

ESP Trailer

ESP

Authentication

E.2.5 Internet Key Exchange (IKE)

Before either AH or ESP can be used, it is necessary for the two communication devices to exchange a secret key that the security protocols themselves will use. To do this, IPSec uses Internet Key Exchange (IKE) as a primary support protocol. IKE facilitates and automates the SA setup, and exchanges keys between parties transferring data. Using keys ensures that only the sender and receiver of a message can access it. These keys need to be re-created or refreshed frequently so that the parties can communicate securely with each other. Refreshing keys on a regular basis ensures data confidentiality.

There are two phases to this process. Phase I deals with the negotiation and management of IKE and IPSec parameters. This phase can be carried out in either one of two modes: Main Mode or Aggressive Mode. Main mode utilizes three message pairs that negotiate IKE parameters, establish a shared secret and derive session keys, and exchange and provide identities, retroactively authenticating the information sent. This method is very secure, but when using the pre-shared key method for authentication, it is possible to use IDs other than the packets’s IP

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addresses. Aggressive mode reduces this process to three messages, but parameter negotiation is limited, identity protection is lacking except when using public key encryption, and is more vulnerable to Denial of Service attacks.

Phase II, known as Quick Mode, establishes symmetrical IPSec Security

Associations for both AH and ESP. It does this by negotiating IPSec parameters, exchange nonces to derive session keys from the IKE shared secret, exchange DH values to generate a new key, and identify which traffic this SA bundle will protect using selectors (IDi and IDr payloads).

The following is an illustration on how data is handled with IKE:

Start

Phase 1

Negotiate

ISAKMP SA

Mutual Authentication

Main Mode or

New IPSec tunnel or Rekeying

Aggressive Mode

Phase 2

Negotiate SAs

For AH and ESP

Quick Mode

With PFS or

Quick Mode

Without PFS

Protected Data Transfer

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Appendix F: IPSec Logs and Events

F.1 IPSec Log Event Categories

There are three major categories of IPSec Log Events for your BiGuard 50G. These include:

1. IKE Negotiate Packet Messages

2. Rejected IKE Messages

3. IKE Negotiated Status Messages

The table in the following section lists the different events of each category, and provides a detailed explanation of each.

F.2 IPSec Log Event Table

IKE Negotiate Packet Messages

Log Event Explanation

Send Main mode initial Sending the first initial message of main mode (phase message of ISAKMP I). Done to exchange encryption algorithm, hash algorithm, and authentication method.

Send Aggressive mode Sending the first message of aggressive mode (phase initial message of ISAKMP I). initial message of ISAKMP

Send Main mode first Sending the first response message of main mode.

ISAKMP algorithm, and authentication method.

Received Main mode first Received the first response message of main mode.

ISAKMP algorithm, and authentication method.

Send Main mode second Sending the second message of main mode. Done to message of ISAKMP exchange key values.

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ISAKMP

Send Main mode second Sending the main mode second response message.

ISAKMP second response message of ISAKMP

Done to exchange key values.

Send Main mode third Sending the third message of main mode. Done for message of ISAKMP authentication.

Received Main mode third message of ISAKMP

Received the third message of main mode. Done for authentication.

Send Main mode third Sending the third response message of main mode.

ISAKMP

Received Main mode third Received the third response message of main mode.

ISAKMP mode initial ISAKMP

Message

Send Aggressive mode Sending the first response message of aggressive first response message of

ISAKMP mode. Done to exchange proposal and key values. message of ISAKMP

Send Aggressive mode Sending the second message of aggressive mode. Done

ISAKMP

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Message

Send Quick mode initial Sending the first message of quick mode (Phase II). message Done to exchange proposal and key values (IPSec).

Received Quick mode Received the first message of quick mode (Phase II). initial message Done to exchange proposal and key values (IPSec).

Send Quick mode first Sending the first response message of quick mode response message (Phase II). Done to exchange proposal and key values

(IPSec).

Received Quick mode first response message

Received the first response message of quick mode

(Phase II). Done to exchange proposal and key values

(IPSec).

Send Quick mode second message

Sending the second message of quick mode (Phase II).

Received Quick mode Received the second message of quick mode (Phase second message II).

ISAKMP IKE Packet Indicates IKE packet.

ISAKMP Information

ISAKMP Quick Mode

Indicates Information packet.

Indicates quick mode packet.

Rejected IKE Messages

NO PROPOSAL CHOSEN: No acceptable Oakley Transform

NO PROPOSAL CHOSEN: No acceptable Proposal in IPsec SA

NO PROPOSAL CHOSEN: PFS is required in Quick Initial SA.

NO PROPOSAL CHOSEN: PFS is not required in Quick Initial SA.

NO PROPOSAL CHOSEN: Initial Aggressive Mode message from [IP Address] but no connection has been configured

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NO PROPOSAL CHOSEN: Initial Main Mode message received on [IP:Port #] but no connection has been authorized

INVALID ID: Require peer to have ID [ID], but peer declares [ID]

INVALID ID INFORMATION: Initial Aggressive Mode packet claiming to be from [ID] on [IP] but no connection has been authorized

INVALID ID: Require peer to have ID [ID], but peer declares [ID]

INVALID ID INFORMATION: Initial Aggressive Mode packet claiming to be from [ID] on [IP] but no connection has been authorized

IKE Negotiated Status Messages

Received Delete SA payload and deleting IPSEC State (integer)

Received Delete SA payload: Deleting ISAKMP State (integer)

(Main/Aggressive) mode peer ID is (identifier string)

ISAKMP SA Established

IPsec SA Established

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Appendix G: Bandwidth Management with QoS

G.1 Overview

In a home or office environment, users constantly have to transmit data to and from the Internet. When too many are accessing the Internet at the same time, service can slow to a crawl, causing service interruptions and general frustration. Quality of

Service (QoS) is one of the ways BiGuard 50G can optimize the use of bandwidth, ensuring a smooth and responsive Internet connection for all users.

G.2 What is Quality of Service?

QoS is a feature that prioritizes and guarantees bandwidth to achieve optimal service performance. QoS can maximize the use of available network bandwidth by prioritizing time-sensitive traffic to avoid latencies and delays. By ensuring that time-sensitive applications such as VoIP and streaming video get priority access to bandwidth, users in both home and office environments can enjoy smooth and responsive data transmission no matter which applications they are running.

If you’ve ever experienced slow Internet speeds due to other network users using bandwidth-consuming applications like P2P, you’ll understand why QoS is such a breakthrough for home users and office users. Billion makes itself unique by integrating QoS in its routers for both inbound and outbound traffic.

QoS helps users manage bandwidth and effectively prioritize data traffic. It gives you full control over the traffic of any type of data. Employed on DiffServ

(Differentiated Services) architecture, data traffic is given priority by the router; ensuring latency-sensitive applications like voice and mission-critical data such as

VPN move through the router at lightning speeds, even under heavy load. You can throttle the speed of different types of data passing through the router, limit the speed of unimportant or bandwidth-consuming applications, and even distribute the bandwidth for different groups of users at home or in the office. QoS keeps your

Internet connection smooth and responsive.

G.3 How Does QoS Work?

QoS employs three different methods for optimizing bandwidth:

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-Prioritization: Assigns different priority levels for different applications, prioritizing traffic. High, Normal and Low priority settings.

-Outbound and Inbound IP Throttling: Controls network traffic and allows you to limit the speed of each application.

-DiffServ Technology: Manages priority queues and DSCP tagging through the

Internet backbone. Manages traffic among Ethernet, wireless, and ADSL interfaces.

G.4 Who Needs QoS?

QoS is ideal for home and office users who need to use a variety of real-time applications like VoIP, on-line games, P2P, video streaming, and FTP simultaneously.

With QoS, you can optimize your bandwidth to accommodate several of these applications without experiencing latency or service interruptions.

G.4.1 Home Users

Low latency is everything for gamers. Most home users feel frustrated when trying to play an online game over a shared ADSL connection. Unfortunately, most routers have no way of determining the importance of the packet at any given time. All the traffic is treated equally, so a packet containing an "urgent" command may be delayed. QoS gives you the ability to control the bandwidth. Using IP Throttling, bandwidth limits can be enforced on a particular application or any system within the LAN. Prioritization specifies which packets have priority and should not be delayed, and which packets have lower priority and should be moved to the end of the upload queue.

Suppose there are four students sharing a three-floor house with one single broadband connection. Tom, a college freshman, is playing the online game with his group members, while Mary, a sophomore student, is talking to her net pal via

Skype. Meanwhile, Jacky is downloading a movie file by using the P2P application program. Sophia, however, is just trying to log on to the website to send her photos to her family. As a result, the net speed slows to a crawl and affects everyone sharing the Internet connection. QoS is designed for managing traffic flow and bandwidth to solve this problem. You can first classify different applications (online games, FTP, Skype, email) as shown in the table below. Then, you can manage and prioritize the flow of bandwidth at different levels (e.g. 30% for games, 20% for downloads, 10% for email, 20% for FTP, and 35% for others). QoS can be used to identify different applications and assign priority to enable a smooth and responsive broadband connection.

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Application

On-line games

Data Ratio (%) Priority

30% High

Skype 5% High

Email 10% High

FTP 20% Upload (High), Download (Normal)

Other 35%

G.4.2 Office Users

QoS is also ideal for small businesses using an office server as a web server. With

QoS control, web pages served to your customers can be given top priority and delivered first so that it will not be impeded by email and office web browsing.

Here is a good example of how QoS can work in an office environment. A CEO is holding a videoconference with international clients in the meeting room. However, the streaming video and voice frequently lag. Sales people are talking to international agencies via VoIP phone, while sending orders via email to vendors for production. However, some staff are downloading MP3 music files, large-size photos and watching video streaming online. Consequently, the Internet connection slows down. This is why business users need QoS to manage data traffic. With QoS, the network administrator can define and classify important packets; specify a minimum guaranteed rate for each application, and ensure that important packets have priority to ensure a good quality of broadband connection for the entire organization.

Application Data Ratio (%) Priority

Videoconferencing 30% High

Email 10% High

FTP 10% Upload (High), Download (Normal)

Other 30% MP3 (Low), MSN (Normal)

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Appendix H: Router Setup Examples

H.1 Outbound Fail Over

Step 1: Go to Configuration > WAN > ISP Settings. Select WAN1 and WAN2 and click Edit.

Step 2: Configure WAN1 and WAN2 according to the information given by your ISP.

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Step 3: Go to Configuration > Dual WAN > General Settings. Select the Fail Over radio button. Under Connectivity Decision, input the number of times BiGuard 50G should probe the WAN before deciding that the ISP is in service or not (3 by default).

Next, input the duration of the probe cycle (30 sec. by default) and choose the way

WAN ports are probed.

Please ensure the WAN ports are functioning by performing a ping operation on each before proceeding. Finally, choose whether or not BiGuard 50G should fail back to

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WAN1.

Step 4: Click Save Config to save all changes to flash memory.

H.2 Outbound Load Balancing

192.168.2.2

230.100.100.1

ISP

213.100.100.2

192.168.2.3

With Outbound Load Balancing, you can improve upload performance by optimizing your connection via Dual WAN. To do this, follow these steps:

Step 1: Go to Configuration > WAN > ISP Settings. Configure your WAN1 ISP settings and click Apply.

Step 2: Configure your WAN2 ISP settings and click Apply.

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Step 3: Go to Configuration > Dual WAN > General Settings. Select the Load

Balance radio button.

Step 4: Go to Configuration > Dual WAN > Outbound Load Balance. Choose the Load Balance mechanism you want and click Apply.

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Step 5: Complete. To check traffic statistics, go to Status > Traffic Statistics.

Step 6: Click Save Config to save all changes to flash memory.

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H.3 Inbound Fail Over

Configuring your BiGuard 50G for Inbound Fail Over is a great way to ensure a more reliable connection for incoming requests. To do so, follow these steps:

NOTE: Before you begin, ensure that both WAN1 and WAN2 have been properly configured. See Chapter 4: Router Configuration for more details.

Step 1: From the Web Configuration Interface, go to Configuration > Dual WAN

> General Settings. Select the Fail Over radio button.

Step 2: Configure Fail Over options if necessary.

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Step 3: Go to Configuration > Advanced > Dynamic DNS. Set the WAN1 DDNS settings.

Step 4: From the same menu, set the WAN2 DDNS settings.

Step 5: Click Save Config to save all changes to flash memory.

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H.4 DNS Inbound Fail Over

NOTE: Before proceeding, please ensure that both WAN1 and WAN2 are properly configured according to the settings provided by your ISP. If not, please refer to

Chapter 4.2.2.1 ISP Settings for details on how to configure your WAN ports.

Step 1: Go to Configuration > Dual WAN > General Settings. Select the Fail

Over radio button and configure your fail over policy.

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Step 2: Go to Configuration > Dual WAN > Inbound Load Balance. Select the

Enable radio button and configure DNS Server 1 by clicking Edit.

Step 3: Input DNS Server 1 settings and click Apply.

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Step 4: Configure your Host URL Mapping for DNS Server 1 by clicking Edit to enter the Host URL Mappings List. Click Create and input the settings for Host URL

Mappings and click New.

Step 5: Click Save Config to save all changes to flash memory.

H.5 DNS Inbound Load Balancing

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Step 1: Go to Configuration > Dual WAN > General Settings. Select the Load

Balance radio button.

Step 2: Go to Configuration > Dual WAN > Inbound Load Balance > Server

Settings and configure DNS Server 1.

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Step 3: Go to Configuration > Dual WAN > Inbound Load Balance > Host URL

Mapping and configure your FTP mapping.

Step 4: Next configure your HTTP mapping.

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Step 5: Click Save Config to save all changes to flash memory.

H.6 Dynamic DNS Inbound Load Balancing

Step 1: Go to Configuration > WAN > Bandwidth Settings. Configure your WAN inbound and outbound bandwidth.

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Step 2: Go to Configuration > Dual WAN > General Settings and enable Load

Balance mode. You may then decide whether to enable Service Detection or not.

Step 3: Go to Configuration > Dual WAN > Outbound Load Balance. Choose your load balance policy and click Apply to apply your changes. If you selected

Based on session mechanism as your policy, the source IP address and destination

IP address may go through WAN1 or WAN2 depending on policy settings. If you selected Based on IP hash mechanism as your policy, the source IP address and destination IP address will go through a specific WAN port according to the IP hash algorithm.

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Step 4: Go to Configuration > Advanced > Dynamic DNS and input the dynamic

DNS settings for WAN1 and WAN2.

WAN1:

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Step 5: Go to Configuration > Virtual Server and set up a virtual server for both

FTP and HTTP.

Step 6: Click Save Config to save all changes to flash memory.

H.7 VPN Configuration

This section outlines some concrete examples on how you can configure BiGuard

50G for your VPN.

H.7.1 LAN to LAN

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Branch Office Head Office

Local

ID

IP Address IP Address

Data

Network

IP Address

Netmask

69.121.1.30 69.121.1.3

Any Local Address Any Local Address

192.168.0.0 192.168.1.0

255.255.255.0 255.255.255.0

Remote

Secure Gateway

Address(or Hostname)

69.121.1.3 69.121.1.30

ID

Data

Network

IP Address

Netmask

IP Address IP Address

69.121.1.3 69.121.1.30

Subnet Subnet

192.168.1.0 192.168.0.0

255.255.255.0 255.255.255.0

[

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Proposal

IKE Pre-shared Key

12345678 12345678

Security Algorithm

Main Mode;

ESP:

MD5

3DES

PFS

Main

ESP

MD5

3DES

PFS

H.7.2 Host to LAN

Local

ID

Data

Network

Single client Head Office

IP Address IP Address

69.121.1.30 69.121.1.3

Any Local Address Any Local Address

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IP Address

Netmask

0.0.0.0 192.168.1.0

0.0.0.0 255.255.255.0

Remote

Secure Gateway

Address(or Hostname)

69.121.1.3 69.121.1.30

ID

Data

Network

IP Address

IP Address IP Address

69.121.1.3 69.121.1.30

192.168.1.0 69.121.1.30

255.255.255.0 255.255.255.255

Netmask

Proposal

IKE Pre-shared Key

12345678 12345678

Security Algorithm

Main Mode;

ESP:

MD5

3DES

PFS

H.8 IP Sec Fail Over (Gateway to Gateway)

biguard.billion.com

Main

ESP

MD5

3DES

PFS

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Step 1: Go to Configuration > Dual WAN > General Settings. Enable Fail Over by selecting the Fail Over radio button. Then, configure your Fail Over policy.

Step 2: Go to Configuration > Advanced > Dynamic DNS and configure your dynamic DNS settings (Both WAN1 and WAN2).

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Step 3: Go to Configuration > VPN > IPSec > IPSec Policy. Click Create to configure VPN settings.

Step 4: Click Save Config to save all changes to flash memory.

To configure BiGuard 10 gateway, refer to the screenshot below.

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H.9 VPN Concentrator

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Local ID Type: Subnet

Local subnet: 0.0.0.0

Local mask: 0.0.0.0

Remote ID Type: Subnet

Remote subnet: 192.168.3.0

Remote mask: 255.255.255.0

192.168.2.x

100.100.100.1

BiGuard 50G

Headquarter

Local ID Type: Subnet

Local subnet: 0.0.0.0

Local mask: 0.0.0.0

Remote ID Type: Subnet

Remote subnet: 192.168.4.0

Remote mask: 255.255.255.0

200.200.200.1

Local ID Type: Subnet

Local subnet: 192.168.3.0

Local mask: 255.255.255.0

Remote ID Type: Subnet

Remote subnet: 0.0.0.0

Remote mask: 0.0.0.0

192.168.3.x

BiGuard 10

Branch A

BiGuard 10

Branch B

201.201.201.1

192.168.4.x

Local ID Type: Subnet

Local subnet: 192.168.4.0

Local mask: 255.255.255.0

Remote ID Type: Subnet

Remote subnet: 0.0.0.0

Remote mask: 0.0.0.0

Step 1: Go to Configuration > VPN > IPSec > IPSec Policy and configure the link from BiGuard 50G to BiGuard 10 Branch A.

207

Step 2: Go to Configuration > VPN > IPSec > IPSec Policy and configure the link from BiGuard 50G to BiGuard 10 Branch B.

208

Step 3: Go to Configuration > VPN > IPSec > IPSec Policy and configure the connection from BiGuard 10 Branch A to BiGuard 50G.

209

Step 4: Go to Configuration > VPN > IPSec > IPSec Policy and configure the connection from BiGuard 10 Branch B to BiGuard 50G.

210

Step 5: Click Save Config to save all changes to flash memory.

H.10 Protocol Binding

Step 1: Go to Configuration > Dual WAN > General Settings. Select the Load

Balancing radio button.

211

Step 2: Go to Configuration > Dual WAN > Protocol Binding and configure settings for WAN1.

Step 3: Go to Configuration > Dual WAN > Protocol Binding and configure settings for WAN2.

212

Step 4: Click Save Config to save all changes to flash memory.

H.11 Intrusion Detection

Hacker

BiGuard Safe!!

Server Safe!!

Intrusion Detection on

DoS Attack

DoS Attack

DoS Attack

Hacker

Detected!

Dropped

DoS Attack

Hacker

Step 1: Go to Configuration > Firewall > Intrusion Detection and Enable the settings.

Step 2: Click Apply and then Save Config to save all changes to flash memory.

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H.12 PPTP Remote Access by Windows XP

Headquarter

100.100.100.1

Business Trip

Windows XP

PPTP Client

Public IP

BiGuard &PPTP Server

Local subnet: 192.168.30.0

Local mask: 255.255.255.0

PPTP Tunnel

Step1: Go to Configuration > VPN > PPTP and Enable the PPTP function, Click

Apply.

Step2: Click Create to create a PPTP Account.

214

Step3: Click Apply, you can see the account is successfully created.

Step4: Click Save Config to save all changes to flash memory.

Step5: In Windows XP, go Start > Settings > Network Connections.

215

Step6: In Network Tasks, Click Create a new connection, and press Next.

216

Step7: Select Connect to the network at my workplace and press Next.

Step8: Select Virtual Private Network connection and press Next.

217

Step9: Input the user-defined name for this connection and press Next.

Step10: Input PPTP Server Address and press Next.

218

Step11: Please press Finish.

Step12: Double click the connection, and input Username and Password that defined in BiGuard PPTP Account Settings.

219

PS. You can also refer the Properties > Security page as below, by default.

220

H.13 PPTP Remote Access by BiGuard

Headquarter

100.100.100.1

200.200.200.1

Branch Office

BiGuard &PPTP Server

PPTP Tunnel

Local subnet: 192.168.30.0

Local mask: 255.255.255.0

BiGuard &PPTP Client

Step1: Go to Configuration > VPN > PPTP and Enable the PPTP function, Disable the Encryption, then Click Apply.

Step2: Click Create to create a PPTP Account.

221

Step3: Click Apply, you can see the account is successfully created.

Step4: Click Save Config to save all changes to flash memory.

Step5: In another BiGuard as Client, Go to Configuration > WAN > ISP Settings.

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Step6: Click Apply, and Save CONFIG.

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