Barracuda Networks SSL VPN Quick Start Guide

The Barracuda SSL VPN provides remote users secure, clientless access to their internal network. The Barracuda SSL VPN may be installed directly inside the LAN or in a more complex DMZ configuration.

Getting Started

Follow the instructions in this guide to configure the Barracuda SSL VPN to accept incoming connections from the Internet. To begin setting up your

Barracuda SSL VPN, you will need the following:



Barracuda SSL VPN



AC Power Cord



Ethernet Cables



VGA Monitor (recommended)



PS2 Keyboard (recommended)

Physical Installation

To install the Barracuda SSL VPN:

1. Fasten the Barracuda SSL VPN to a 19-inch rack or place it in a stable location.

2. Connect an Ethernet cable from your network switch to the Ethernet port on the back of the Barracuda SSL VPN.

3. Connect a VGA Monitor, PS2 Keyboard, and AC power cord to the unit.

4. Press the power button on the front panel to turn the unit on.

Configure IP Address and Network Settings

If you have a monitor connected, the Barracuda SSL VPN will display the Boot

Menu initially, and the Administrative Console login prompt once fully booted. To begin the configuration:

1. Login to the Administrative Console using the admin login:



Login: admin

Password: admin

2. Configure the IP Address, Subnet Mask, Default Gateway, Primary DNS

Server and Secondary DNS Server as appropriate for your network.

If you do not have a monitor and keyboard and want to set the IP address using the RESET button on the front panel, press and hold the RESET per the following table:

IP address

192.168.200.200

192.168.1.200

10.1.1.200

Press and hold RESET for …

5 seconds

8 seconds

12 seconds

Barracuda SSL VPN - Quick Start Guide

Open Firewall Ports

If your Barracuda SSL VPN is located behind a corporate firewall, open the following ports on your external firewall to ensure proper operation:

Port Direction

22 Out

25

53

Out

Out

80 Out

123 Out

443 In

TCP

Yes

Yes

Yes

Yes

No

UDP

No

No

Yes

No

Yes

Yes No

Usage

Remote diagnostics and service (recommended)

Email alerts + One-time passwords

Domain Name Service (DNS)

Firmware and definition updates

Network Time Protocol (NTP)

HTTPS/SSL port for SSL VPN access

8000 Out

8000 In*

Yes No

Yes No

Firmware and definition updates (backup)

External appliance administrator port (HTTP)*

8443 In* Yes No External appliance administrator port (HTTPS)*

* Only if appliance management is performed from outside the corporate network

T he following ports must be opened if the listed type of access is desired:

1723 In

500 In

4500 In

Yes

No

No

No

Yes

Yes

PPTP access**

L2TP/IPsec access

L2TP/IPsec access

** Note: PPTP access also requires GRE (IP protocol 47)

If you also have an internal firewall (due to placing the Barracuda SSL VPN in a

DMZ, for example), then the following must be allowed on your internal firewall:

389 Out

636 Out

Yes No

Yes No

LDAP/Active Directory read access

LDAP/Active Directory read/write access

Barracuda SSL VPN Configuration

Use a computer with a Web browser that is connected to the same network as the Barracuda SSL VPN and follow these steps:

1. In your web browser’s address bar, enter http:// followed by the IP address of the Barracuda SSL VPN, followed by the default Appliance Administrator web interface HTTP port (:8000). For example, if you configured the

Barracuda SSL VPN with an IP address of 192.168.200.200, you would type:

http://192.168.200.200:8000

2. Log in to the Appliance Administrator web interface as the administrator:

Username: admin Password: admin

3. Go to the BASIC > IP Configuration page and perform the following:



Verify the IP Address, Subnet Mask, and Default Gateway.



Verify the Primary and Secondary DNS Server.



Enter the Default Hostname and Default Domain.



If you are using a proxy server on your network, you should also verify the

Proxy Server Configuration settings.

4. Complete the rest of the fields on this page and save your changes.

Barracuda SSL VPN

Activate Subscriptions

Verify that the Energize Updates feature is activated on your Barracuda SSL

VPN – this is required to enable further configuration.

1. Go to the Basic > Status page.

2. Under Subscription Status, if Energize Updates is Not Activated, click the activation link to be redirected to the Barracuda Networks Product Activation page. Complete activation of your subscription(s).

If it is connected to the Internet, the Barracuda SSL VPN automatically updates its activation status after you reload the browser page when viewing the Basic >

Status page.

Update the Firmware

Go to the ADVANCED > Firmware Update page. If there is a new Latest

General Release available, perform the following steps to update the system firmware:

1. Click the Download Now button located next to the Latest General Release firmware version. To view the progress of the download progress, click

Refresh. To avoid damaging the Barracuda SSL VPN, do not power off the system during an update or download

2. When the download is complete, click Apply Now to apply the firmware.

Click OK to acknowledge the reboot message. Applying the firmware takes a few minutes to complete.

3. After applying the firmware, the Barracuda SSL VPN will automatically reboot. When the system comes back up, the login page is displayed. Log in again.

Change the Administrator Password

To avoid unauthorized use, we recommend you change the password for the default Appliance Administrator web interface to a more secure password.

1. Go to BASIC > Administration to change your password.

2. Complete the rest of the fields on this page.

Route Incoming SSL Connections to the Barracuda SSL VPN

To take advantage of all available features, you must route HTTPS incoming connections on port 443 to the Barracuda SSL VPN. This is typically achieved by configuring your corporate firewall to port forward SSL connections directly to the

Barracuda SSL VPN.

Note: The Appliance Administrator web interface ports on 8000/8443 will also need similar port forward configurations if you intend to manage the appliance from outside the corporate network.

Barracuda SSL VPN - Quick Start Guide

Verify Incoming Connections to the Barracuda SSL VPN

Once you have configured your corporate firewall to route SSL through to the

Barracuda SSL VPN, you should be able to accept incoming SSL connections.

1. To test the connection, use a web browser from the Internet (not inside the

LAN) to establish an SSL connection to the external IP address of your corporate firewall. For example, if your firewall’s external IP address is

192.168.1.1, direct your browser to: https://192.168.1.1

2. If you receive a warning in your browser about an untrusted SSL certificate, accept the warning to load the page.

3. On the login page for the SSL VPN interface, log in with the credentials for the VPN administrator:

Username: ssladmin Password: ssladmin

4. You will now be successfully logged in as the VPN administrator, and taken directly to the SSL VPN Management Interface. From here you can set up accounts and other resources for users of the Barracuda SSL VPN.

Additional Post-Setup Configuration Items

Your Barracuda SSL VPN should now be able to accept incoming connections from the Internet. However, the following additional steps should be performed to fully complete the initial configuration:



Register a hostname with your DNS server for the Barracuda SSL VPN, such as: sslvpn.example.com



Install an SSL certificate on the Barracuda SSL VPN for the hostname, to ensure your users can confirm that they are connecting to a genuine

Barracuda SSL VPN that is registered to your organization.



Integrate the Barracuda SSL VPN with your existing user database. To cleanly integrate with your environment, the Barracuda SSL VPN can read in user accounts and authenticate against a number of different databases, including Microsoft Active Directory and LDAP.



Grant users access to resources using the policy framework. Create a number of policies that best represent your organization's structure and then link resources and users. Users that are not part of the policy are denied access while those that are part of the policy are allowed access to these resources.



Further refine your access policies by managing user access rights.

If your network uses a DMZ, you may wish to configure the Barracuda

SSL VPN in this topology for greater security.

Additional documentation, including the Barracuda SSL VPN

Administrator’s

Guide, can be found at http://www.barracuda.com/documentation.

Contact and Copyright Information

Barracuda Networks, Inc. 3175 S. Winchester Blvd, Campbell, CA 95008 USA



phone: 408.342.5400



fax: 408.342.1061



www.barracuda.com

Copyright 2004-2012



Barracuda Networks, Inc. All rights reserved. Use of this product and this manual is subject to license. Information in this document is subject to change without notice. Barracuda SSL VPN is a trademark of Barracuda Networks, Inc. All other brand and product names mentioned in this document are registered trademarks or trademarks of their respective holders. 21-120118-mb

Barracuda SSL VPN