D-Link | DSA-5100 | User's Manual | D-Link DSA-5100 User's Manual

AirSpot Gateway
4-Port AirSpot Gateway
With 2 WAN Ports for Double Internet Bandwidth
The DSA-5100 AirSpot Gateway is a cost-effective device for business and public organizations such as schools, hospitals and
conventions to create a wired or wireless hot spot. This Public/Private Hot Spot Gateway is an Ethernet-based gateway
designed to provide free or fee-based broadband connection to the public users while at the same time providing a separate and
secure private network that shares the same Internet connection. If your business relies on public patronage, you have a way to
give customers access to the Internet, or to networked printers and other resources. If you're a private company that wants to
offer wireless Internet access for your employees, you can do so with the confidence that you're still maintaining a secure
private network that a wireless user will never see. Connect a D-Link wireless access point to the DSA-5100 and you've got a
wireless hot spot. Connect a D-Link switch and your back office computers and printers can share the same broadband
Double Internet Bandwidth
The DSA-5100 provides 2 WAN ports to double the Internet
connection bandwidth. The WAN ports supports 802.3ad
Link Aggregation industry standard and can be bonded
together into a load-sharing port trunk to eliminate
bottlenecks in heavy Internet access environments. The DSA5100 provides bandwidth management tools for you to assign
rational bandwidth usage of the 2 WAN ports.
Total Wireless Management Solution
The DSA-5100 Network Access Control System (NACS)
provides functions beyond the AAA standard. Its 4A
management solution supports not only Authentication,
Authorization and Accounting (AAA), but also
Administration for all wireless (and wired) network users.
The gateway has a built-in database of up to 60 customized
access management rules and up to 2,000 user accounts. The
DSA-5100 can support up to 400 users on-line at any single
moment. The gateway also supports POP3, RADIUS, and
LDAP external authentication for larger-scale hot spot
networks. Other features IP plug and play, user bandwidth
control, network policy enforcement, customizable user
timer, login/logout web-page, online traffic monitoring, and
URL redirection provide a number of different ways for your
organization to configure and manage your hot spot as either
as a free or revenue-generating service.
Comprehensive Network Protection
The DSA-5100 includes a built-in DHCP server and a
built-in high-speed routing engine, an easy-to-use webbased graphical user interface (GUI) with SSL protection
to securely and quickly configure the device.
Configuration is also capable through the device's RS-232
console port. To prevent unwanted Internet intruders from
accessing your network, the DSA-5100 has a built-in
Security Firewall with Denial of Service (DoS) prevention.
With IP PnP (Plug and Play) and IP/port redirection
provided by the DSA-5100, users connecting to the hot
spot don't need to re-configure their computer's settings to
send or retrieve e-mail or access the Internet.
Ideal Hot Spot Solution
Capable of serving hundreds of simultaneous, discrete
users, the DSA-5100 gateway is the perfect system for a
mid-size enterprise and organization to provide a wireless
hot spot. In a matter of just a few minutes, your business
or organization can provide a wired or wireless hot spot
while still maintaining a private network that the public
will never see. Whether you're an enterprise, merchants
association, factory, hospital, school, or public library, the
DSA-5100 is your instant hot spot solution.
AirSpot Gateway
Functions & Features
Simplified wireless connection for end users
No extra software required at end-user side
No IP setting change on end-user computers
Friendly end-user connection to login page from web browser
Minimized training cost for hot spot service providers
Beyond the AAA, total wireless management
Satisfies 4 requirements of WLAN management: Authentication, Authorization, Accounting, Administration (4A)
Built-in end-user database with maximum 60 customizable access management rules for different groups
Multiple external authentication systems support: RADIUS, POP3, POP3S, LDAP/AD
Simultaneous support of multiple external authentication hosts
Rational assignment of bandwidth usage through a bandwidth management tools
Wireless Access Point on-line status monitoring through Monitor IP function
Remote system maintenance in safe mode through SSL encryption
Complete security features
Multi-layer traffic control from L2 to L4 with 802.1x standard integration
End-user account information protection through SSL encryption at login
Customizable packet filtering rules through group policies to manage end-users' access
End-user access time control through login schedules management
Multiple protection mechanisms against DoS attacks
Integrated accounting engine
Multiple accounting mechanisms
RADIUS and local-based account records support
Technical Specifications
Device Ports
- 2 WAN ports (10/100BASE-TX Ethernet) with 802.3ad
LACP Link Aggregation support
- 1 private LAN port (10/100BASE-TX Ethernet) with 802.1q
VLAN tag support
- 1 public LAN port (10/100BASE-TX Ethernet)
with 802.1x authentication support
- 1 RS-232 console port
- 1 RS-232 auxiliary port (reserved for thermal printer connection)
System Performance
- Maximum concurrent users supported: 400 users
- Maximum network throughput: 90Mbps
Dynamic Memory (RAM Buffer)
Flash Memory (Firmware)
LED Indicators
- Power (per device)
- Status (per device)
- Link/Activity (per WAN/LAN port)
Software Features
- NAT, router and bridge modes
- NAT Plug and-Play
- Static IP, DHCP client and PPPoE client on WAN1 interface
- Static IP, DHCP client and 802.3ad (under static IP) on WAN2 interface
- Built-in DHCP server
- DHCP relay
- Built-in NTP client
- HTTP proxy
- Destination IP/port redirect
- Inter-IP-segment roaming
- IPSec (ESP), PPTP and H.323 pass-through (under NAT)
- Virtual Server Mapping
- DMZ Server Mapping
- Static Route Mapping
User Management
- Maximum local user accounts in built-in database: 2,000 accounts
- Optional MAC address locking with local user database
- Maximum guest accounts: 10 accounts
- Maximum number of on-line users: 400 users
- Maximum number of authentication/authorization policies: 5 policies
- External authentication database support: POP3, POP3S, RADIUS, LDAP,
Windows domain
- Allow/disallow multiple login
- User login schedule control
- Customizable logout timer
- Customizable guest session time control
- MAC/ IP address pass-through
- GRIC roaming in
- Customizable Black List
- Local/RADIUS accounting
Security Policy
- Secure HTML login page (SSL)
- 64-bit, 128-bit WEP encryption
- 802.1x user authentication (EAP, MD-5, EAP-TLS)
- Maximum 802.1q VLAN (for LAN ports): 32 VLANs
- VLAN tag range from 2 to 4094
- Machine/Subnet DoS protection
- Customizable packet filter rules by group
- Customizable Walled Garden (free surfing area)
Technical Specifications
AirSpot Gateway
- On-line status monitoring/traffic data history
- SSL protected administration/user authentication interface
- IP monitoring
- Customizable user login/logout web interface
- Targeted URL redirect after successful login
- Console administration interface
- Web-based administration interface
- SSH remote administration interface
- SNMP v.2 management standard
- External SYSLOG server
- User bandwidth control
- Remote firmware update
- Configuration data backup/restore
Software Specifications
WAN Fail Condition Handling
- WAN fail condition detection using ICMP echo mechanism to ping
default gateway and DNS periodically
- 2 configurable options prior to WAN failure:
Display error message and block all access
Allow free access without control
Policy Routing Profiles
- 6 sets of policy routing rules
- 10 rules for each policy routing set
NAT/Router Dual Mode Operation
Each VLAN/LAN port separately configurable to different modes of operation
Destination IP/Port Redirection
Maximum 40 definable IP/port redirection rules to force data packets to be
redirected from one destination to another destination
Non-Authentication Private LAN Port
(For connection to desktops and servers)
Hosts on Private LAN still under control of firewall rules
Virtual Server Mapping
Maximum 40 configurable mapping rules
DMZ Server Mapping
Maximum 40 configurable DMZ server mapping rules
IP Plug-and-Play Support
Clients can use their existing pre-configured IP address to access Public
LAN or Private LAN port without changing their IP settings *
* This function (1) not supported in bridge mode, (2) does not allow any L3 switch between clients
and DSA-5100.
User Management
Access Control to LAN Port
Users must login first to gain network access
- Maximum 6 user groups (1 guest group, 5 definable user groups)
- Each group configurable to have own name, filter rules, routing,
bandwidth control and schedule control
Bridge Mode
- DSA-5100 can be set up as a bridge for easier network integration
- Limitations in bridge mode:
All device interfaces are bridged; VLANs are disabled
Available only when WAN port is set to static IP address
MAC Address Control
Maximum 40 sets of MAC addresses
First WAN Port Connection Methods
- Static IP address
- DHCP client
- PPPoE client
Logout Method
- Manual logout (password & ID key-in required)
- By closing logout window (once user-friendly logout enabled)
Second WAN Port Connection Methods
- Static IP address
- DHCP client
Built-In DHCP Server
- Each LAN port independently configurable/enabled
- Configurable functions: IP pool, leasing time, WINS, DHCP relay, DNS
(per port, primary, secondary)
- Default IP of Public LAN:
- Default IP of Private LAN:
NAT Application Protocol Pass-Through
When client is under NAT segment, following protocols can be passed through:
HTTP Proxy
Maximum 10 sets of external proxy servers
Inter-Segment Roaming
Authenticated users can roam between VLAN segments without changing their
network settings or re-login to system
Static Route Mapping
- Maximum 6 sets of policy routing rules
- Maximum 10 rules per policy routing set
External User Database Failure Condition Handling
Displays error message with administrator's contact information
Login Method
- Automatic login through user's cached login information
- Customizable maximum remembrance of user ID
Multiple User Databases
Simultaneous support of multiple internal/external user databases for
Guest User Configuration
Maximum 10 predefined guest accounts configurable as active or inactive
Local User Accounts
- Maximum 2000 user accounts
- User accounts configurable to associate with individual MAC addresses
- Case-insensitive user IDs
RADIUS Authentication
- Primary/secondary RADIUS servers support for
fault-tolerant user authentication
- RADIUS authentication protocols supported: PAP, CHAP
- RADIUS attributes supported: Session Timeout, Idle Timeout
LDAP User Database
- Microsoft Active Directory support
- Configurable fields: LDAP server IP, port number, Base DN
POP3 Authentication
Primary/secondary POP3 mail server support
Software Specifications
POP3S Authentication
Primary/secondary POP3 mail server with SSL support
Windows Domain Authentication
Microsoft NT domain controller support
Transparent Windows Domain Login
Automatic login to DSA-5100 upon user's successful login to Windows
domain *
* Windows 2000 domain controller support only
GRIC Roaming
GRIC users can use DSA-5100 UAM to login to controlled network
Definable Guest Permission
Maximum 10 definable filter rules
Black List
Maximum 5 Black Lists to disallow up to 50 pre-defined user accounts
from network access
User Login Schedule Profile
Maximum 5 schedules to control matrixes by the hour
Guest Session Time Control
1 to 12 hours' limit (default: no limit)
Local/RADIUS Accounting
- Local accounting mode generated CDR-liked recorder containing fields:
Start time
End time
User ID
User MAC
User IP
Packets In
Bytes In
Packets Out
Bytes Out
- RADIUS accounting mode accounting attributes: *
* Generated using standardized RADIUS accounting protocols and put on RADIUS server
Firewall Profiles
- 6 sets of IP filtering rules (50 rules for the Global set, 10 rules for
each set of other IP filters)
- Following fields can be applied to machines and subnets controlled
by DSA-5100:
Port/port range
Source MAC
Source/destination interface
Source/destination IP address/segment
Walled Garden
IP/IP segments defined in Walled Garden can be visited prior to user login
Machine/Subnet DoS Protection
- Xmas Tree
- Ping of Death
- Null Scan
Customizable User Login/Logout Page
- Uploaded login/logout page may include images
- Image size for all uploaded images limited to 512KB
- Login/logout pages can be enabled/disabled through 128-bit SSL
AirSpot Gateway
Home Page Support
- System administrator can customize home page
- 2 firmware versions for different regions using different default
home pages
- Default homepage for USA: www.dlink.com
- Default homepage for other areas: www.dlink.co.uk
Authentication Policy
- 5 sets of management types (including 1 default management type)
distinguished by postfix
- Postfix of default group can be omitted for users in default group
- Each management type can be associated with a Black List and
an authentication database
- Users in a management type can belong to different user
groups according to various pre-defined attribute-matching rules
Online User Monitoring
- Real-time monitoring tool containing following fields:
User ID
MAC address
Packets In/Bytes In
Packets Out/Bytes Out
Idle time in seconds
- System administrator can logout online users individually
from monitoring function
Off-line Usage History
- History file contains following fields:
Start/End Time
User ID
MAC Address
Packets In/Bytes In
Packets Out/Bytes Out
- History log file can be periodically sent to system administrators in
pre-defined time interval from 1 hour to 24 hours through email system
- Generated history log files can be kept maximum 4 days
- Customizable received administrator mail account and received
history mail account
- History log accessible from specific IP address
- Local time display on history log
Web-Based Administration
SSL protected
Serial Console Management Functions
- Restore to factory default
- Change administrator's password
- Network debug utilities
- Device service status check
SSH Remote Management Functions
- Restore to factory default
- Change administrator's password
- Network debug utilities
- Device service status check
Remote Firmware Upgrade
Via a web-based administration UI
External SYSLOG
External SYSLOG server can store log data for DSA-5100.
Monitor IP List
- Using ICMP echo mechanism, DSA-5100 checks accessibility for
all devices configured in Monitor IP List
- Maximum 40 sets of IP can be defined in Monitor IP List
- If any device in this list loses contact, DSA-5100 will send an
alarm message to its system administrators via e-mail
SNMP Support
SNMP v.2c read-only access (basic MIBs only)
Welcome E-Mail Message
- Contains guidance to access DSA-5100
- This message will be sent when users try to receive e-mail
before actually logged into DSA-5100 *
* Supports POP3 protocol
Technical Specifications
AirSpot Gateway
MAC/IP Pass-Through
Provides 100 sets of IP addresses and 100 sets of MAC addresses,
which can bypass login procedure but still have all general user
permissions applied
Idle Timeout
Provides different idle timeouts for guest groups
Sorry Page
- Mechanism to detect abnormal status of Internet connection and
backend systems
- Displayed when WAN or external user database fails
- Sorry page will replace login page until abnormal status is recovered
Max Bandwidth Control
- Configurable bandwidth control to limit all groups
- Bandwidth control customizable by group in KB/MB per second
(64KB, 128KB, 256KB, 512KB, 1MB, 2MB, 5MB, 10MB, unlimited)
Wizard Support
Setup wizard for easy system configuration
Specific User Account Support
- Provides manager account
- Can only access specific pages (e.g. Authentication Policies, Group
Configuration, Black List Configuration, Guest User Configuration,
Roaming Configuration, User Control, Upload File)
- If access to other pages attempted, system will display alarm message
Certificate to Upload
Provides upload customer key page and upload customer certificate
page for user upload certificate
API Support
Provides API following attributes:
- Package size translated (in bytes)
- Timeout control
- Kick off users
Physical & Environmental
110 to 240 VAC 50/60Hz
Internal universal power supply
425 mm (W) x 240 mm (D) x 44 mm (H) (device only)
19-inch rack-mount width, 1 U height
3.3kg (device only)
Ordering Information
4-Port AirSpot Ticket Printer
Operating Temperature
5 to 45 C
Storage Temperature
-25 to 55 C
Operating Humidity
5% to 95% non-condensing
EMI Certification
- FCC Class A
- CE Class A
Specifications subject to change
without prior notice.
D-Link is a registered trademarks of
D-Link Corporation/D-Link System Inc.
All other trademarks belong to their
Safety Approval
Rev. 01 (Sep. 2004)
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D-Link Corp.
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Technical Specifications
AirSpot Gateway
Cable/DSL Modem
F/W Profiles
QoS Profiles
Login Schedules
Wired Clients
POP3 Authentication Server
F/W Profiles
QoS Profiles
Login Schedules
To cost-effectively double your Internet bandwidth, you can (1) connect both
WAN ports of your AirSpot Gateway to two separate lower rate/lower charge
broadband lines, then (2) allocate your users/servers' traffic to different WAN
ports to create an even load balance.
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