Allied Telesis AT-AR256E User manual

Reference Manual
AT-AR256E, 4-Port ADSL Router
Reference Manual
Version 1.0
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Table of Contents
Preliminary Pages Page
Table of Contents...................................................................................................................2
List of Illustrations.................................................................................................................4
Chapter 1 – About this Manual............................................................................................7
1.1 Introduction ......................................................................................7
1.2 Scope and Purpose............................................................................7
1.3 Target Audience ...............................................................................7
1.4 Manual Organisation........................................................................7
Chapter 2 – AT-AR256E Description..................................................................................8
2.1 AT-AR256E Overview.....................................................................8
2.2 AT-AR256E Features.......................................................................9
Chapter 3 – Your Router At A Glance...............................................................................11
3.1 Ports and Buttons............................................................................11
3.2 AT-AR256E Overview...................................................................12
3.2.1 Front Indicators ..............................................................................12
3.2.2 Back Panel......................................................................................13
Chapter 4 – Installing the AT-AR256E .............................................................................14
Chapter 5 – Setting Up the AT-AR256E...........................................................................15
5.1 Log In .............................................................................................15
5.2 Quick Start......................................................................................17
5.3 LAN Configuration ........................................................................17
5.4 Diagnostics.....................................................................................18
5.4.1 Ping Test.........................................................................................19
5.4.2 Modem Test....................................................................................20
5.5 Advanced........................................................................................20
5.5.1 WAN Connection...........................................................................21
5.5.2 New Connection.............................................................................21
5.5.3 ADSL Modulation..........................................................................21
5.5.4 Quickstart .......................................................................................22
5.5.5 LAN Configuration ........................................................................23
5.5.6 LAN Clients....................................................................................24
5.5.7 UPnP...............................................................................................25
5.5.8 SNTP ..............................................................................................25

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5.5.9 SNMP.............................................................................................26
5.5.10 IP QoS ............................................................................................27
5.5.11 IGMP Multicast..............................................................................28
5.5.12 Port Forwarding..............................................................................29
5.5.13 MAC Filtering (Bridge Filters) ......................................................30
5.5.14 Access Control................................................................................30
5.5.15 Routing (Static Routing).................................................................31
5.5.16 Routing (Dynamic Routing)...........................................................32
5.5.17 System Password............................................................................33
5.5.18 Firmware Upgrade..........................................................................34
5.5.19 Restore To Default .........................................................................34
5.6 Security...........................................................................................35
5.6.1 IP Filters .........................................................................................35
5.7 Status ..............................................................................................36
5.7.1 Connection Status...........................................................................36
5.7.2 System Log.....................................................................................37
5.7.3 Remote Log....................................................................................37
5.7.4 Network Statistics...........................................................................38
5.7.5 DHCP Clients.................................................................................38
5.7.6 Modem Status.................................................................................39
5.7.7 Product Information........................................................................39
5.8 Help ................................................................................................40

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List of Illustrations
Figure Page
Figure 1-1: System Configuration Diagram...........................................................................8
Figure 1-2: Front Indicators .................................................................................................12
Figure 1-3: Back Panel.........................................................................................................13
Figure 1-4: Connection Diagram..........................................................................................14
Figure 1-5: Log In................................................................................................................15
Figure 1-6: Quick Start.........................................................................................................16
Figure 1-7: Basic Home .......................................................................................................16
Figure 1-8: Quick Start.........................................................................................................17
Figure 1-9: LAN Configuration ...........................................................................................18
Figure 1-10: Diagnostics......................................................................................................18
Figure 1-11: Diagnostics (Test Results)...............................................................................19
Figure 1-12: Ping Test..........................................................................................................19
Figure 1-13: Modem Test.....................................................................................................20
Figure 1-14: Advanced.........................................................................................................20
Figure 1-15: New Connection (PPPoE Connection Setup)..................................................21
Figure 1-16: ADSL Modulation (Modem Setup).................................................................22
Figure 1-17: Quickstart (PPPoA Connection Setup)............................................................23
Figure 1-18: LAN Configuration .........................................................................................24
Figure 1-19: LAN Clients ....................................................................................................24
Figure 1-20: UPnP................................................................................................................25
Figure 1-21: SNTP...............................................................................................................26
Figure 1-22: SNMP Management........................................................................................27
Figure 1-23: IP QoS .............................................................................................................28
Figure 1-24: Multicast (IGMP Multicast)............................................................................28

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Figure 1-25: Port Forwarding...............................................................................................29
Figure 1-26: MAC Filtering (Bridge Filters) .......................................................................30
Figure 1-27: Access Control ................................................................................................31
Figure 1-28: Routing (Static Routing) .................................................................................32
Figure 1-29: Routing (Dynamic Routing)............................................................................33
Figure 1-30: System Password.............................................................................................33
Figure 1-31: Firmware Upgrade...........................................................................................34
Figure 1-32: Restore To Default prompt..............................................................................34
Figure 1-33: Security............................................................................................................35
Figure 1-34: IP Filters..........................................................................................................35
Figure 1-35: Status...............................................................................................................36
Figure 1-36: Connection Status............................................................................................37
Figure 1-37: System Log......................................................................................................37
Figure 1-38: Remote Log Settings.......................................................................................38
Figure 1-39: Network Statistics............................................................................................38
Figure 1-40: DHCP Clients..................................................................................................39
Figure 1-41: Modem Status..................................................................................................39
Figure 1-42: Product Information ........................................................................................40
Figure 1-43: Help.................................................................................................................40

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Safety Messages
WARNING
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HIGH VOLTAGE
is used in the equipment. Make sure equipment is properly grounded before
opening. Failure to observe safety precaution may result in electric shock to
user.
CAUTION
Check voltages before connecting equipment to power supply and outlet.
Wrong voltage applied may result in damage to equipment.

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Chapter 1 – About this Manual
1.1
1.2
1.3
1.4
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Introduction
This manual provides a general product overview and descriptions of its subsystems and
components, and basic operation and preventive maintenance instructions on the AT-AR256E.
Scope and Purpose
This manual provides the following:
•An overview of the AT-AR256E system configurations and connections;
•General descriptions and specifications on the AT-AR256E system components;
•Operating instructions on the system and equipment;
Target Audience
This manual is designed and developed for the operators and users who are required to operate
and perform first-level maintenance on the AT-AR256E. It assumes the user of this manual has
basic knowledge and experience in operating similar router configurations and computer systems
equipment.
Manual Organisation
This manual is divided into the following chapters:
Chapter 1 – About this Manual; this chapter provides an introduction to the manual’s scope
and purpose, target audience and manual organisation.
Chapter 2 – AT-AR256E Description; this chapter provides the system configuration
diagram and system features.
Chapter 3 – Your Router At A Glance; this chapter provides an overview of the system
configuration, connections and general description of the AT-AR256E.
Chapter 4 – Installing the AT-AR256E; this chapter provides information on the router
installation.
Chapter 5 – Setting Up the AT-AR256E; this chapter provides descriptions of all functions
within the web Graphical User Interface (GUI).

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Chapter 2 – AT-AR256E Description
The AT-AR256E is the perfect high speed WAN router. This full-featured router is specifically
designed to connect to the Internet and directly to your Local Area Network via high speed
10/100Mbps Ethernet. The AT-AR256E also has full NAT firewall and DMZ services to block
unwanted users from accessing your network.
For gaming users, the AT-AR256E is already preconfigured for several low latency game ports.
Just click on the game you are playing online, and the rest is done for you.
The AT-AR256E is fully compatible with all computers; as long as the computer supports a
Ethernet interface and is running a TCP/IP protocol stack, it can have high speed WAN access.
So, connect the AT-AR256E (refer to Quick Install Guide), configure it (per your ISP’s
requirements) and enjoy fast Internet access like never before.
AT-AR256E Overview2.1
Figure 1-1 shows the system configuration diagram of a typical AT-AR256E connection.
Hub / Switch
AT-AR256E
Figure 1-1: System Configuration Diagram
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2.2 AT-AR256E Features
ADSL/ATM Support
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ANSI T1.413 Issue 2, ITU-T G.992.1 (G.dmt) and G.992.2 (G.lite) compliant
ADSL2, ADSL2+, RE-ADSL compliant
Rate Adaptive modem at 32Kbps steps
Dynamic Adaptive Equalisation to improve Carrier’s service area
Bridge Tap Mitigation
ATM Layer with Traffic shaping QoS (UBR, CBR, VBR-rt, VBR-nrt)
AAL ATM Attributes – AAL5
Multiple PVC up to 8 (Bridged)
Spectral compatibility with POTS
F5 OAM Loopback/Send and Receive
Encapsulation Support
RFC 2684 Bridge and Routed LLC and VC Mux
RFC 2364 PPPoA Client
RFC 2516 PPPoE Client
RFC 2225/RFC 1577 Classical IP
Transparent Bridge
Network Support
Static IP, Dynamic RIP routing
IP/TCP/UDP/ICMP/ARP/RARP Application
Network Address Translation (NAT)
Port Mapping/Forwarding
Easy setup of Port Forwarding rules for popular Games/Applications
NAT Application Level Gateway for popular applications
DHCP Server/Relay/client
DNS Relay Agent
DMZ
IPSec and PPTP/L2TP VPN pass-through
PPP Always on with configurable timeout
PPP Dial-on-Demand
Universal Plug and Play (UPnP)

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Management Support
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Web Based HTTP management GUI
TFTP/FTP for Firmware Upgrade
Web Based Firmware Upgrade (Local)
Soft Factory Reset Button via Web GUI
Diagnostic Test (DSL, OAM, Network, Ping Test)
Telnet/CLI (Read-Only)
Syslog
Security Support
NAT for basic Firewall
Packet Filtering Firewall
Stateful Packet Inspection
Protection against Denial of Service attacks
Password Authentication
Physical Interfaces
1 x ADSL/2/2+ port (RJ-11)
1 x factory reset button
4 x 10/100TX ports (RJ-45; auto MDI/MDI-X)
1 x DC power jack (9V)
1 x power on/off switch

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Chapter 3 – Your Router At A Glance
3.1 Ports and Buttons
DSL (Digital Subscriber Line): connects to a telephone wall socket with the supplied telephone
cable.
Reset (Restore to Factory Defaults): the restore to factory defaults feature will reset the AT-
AR256E to its factory default configurations. You may need to reset the router if the
configuration was changed, you lose the ability to interface with the router via its web GUI or
following a software upgrade. To reset the AT-AR256E, simply press the reset button for about
10 seconds. The router will be reset to its factory defaults and after 30~40 seconds, the router
will become operational again.
E1 ~ E4 (Local Area Network): connect to Ethernet devices such as LAN adapter cards, hubs
and switches. The AT-AR256E comes with four LAN connections.
DC 9V: connects to the supplied power adapter. Make sure to observe the proper power
requirements.
Power: to switch on/off the router.

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AT-AR256E Overview
3.2
3.2.1 Front Indicators
Figure 1-2 shows the front indicators of the router.
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Figure 1-2: Front Indicators
1. POWER
Lights up when power is supplied to the router.
2. E1 ~ E4
Lights up when the Ethernet cable is properly connected from the router to your Ethernet
device.
Flickers when data is transmitted/received via that Ethernet port of the router.
3. DSL
Lights up when the DSL connection is established.
Blinks when the modem is trying to establish a connection with the DSL service provider
Flickers when data is transmitted/received via the DSL port of the router.
4. INTERNET
Lights up when the PPP connection is established.
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3.2.2 Back Panel
Figure 1-3 shows the back panel of the AT-AR256E.
1 2 3 4 5
Figure 1-3: Back Panel
1. DSL
ADSL/2/2+ port (RJ-11) to connect to your telephone wall socket.
2. RESET
To reset your router to its factory default settings. (All customised settings that you have
previously saved will be lost!) To reset the AT-AR256E, simply press the reset button for about
10 seconds.
3. E1 ~ E4
10/100TX ports (RJ-45) supporting auto MDI/MDI-X (automatic cable detection for straight-
through and crossover function) to connect to your Ethernet devices.
4. DC 9V
To connect to the power adapter that comes with the AT-AR256E package.
5. POWER
To switch on/off the router.
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Chapter 4 – Installing the AT-AR256E
1.
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Locate a suitable location for your router. For connections to the DSL and Ethernet
interfaces, please refer to the Quick Install Guide.
Connect the power adapter. Depending upon the type of network, you may want to put the
power supply on an Uninterruptible Power Supply (UPS).
Note…
Only use the power adapter supplied with the AT-AR256E package. A different
adapter may damage the router.
Figure 1-4 shows the router connection diagram.
Hub / Switch
AT-AR256E
Figure 1-4: Connection Diagram
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Chapter 5 – Setting Up the AT-AR256E
The Basic tab contains features that are catered for basic users.
This section will guide you through your router’s configurations. The AT-AR256E is shipped
with standard PPP profiles.
Log In5.1
1.
2.
To configure your router, open your web browser. You may get an error message at this point,
this is normal.
Type the default IP address (192.168.1.1) or AlliedTelesyn.ATI on the web address bar.
Press the Enter key and the Log In page will appear. See Figure 1-5
Note…
Before setting up your router, make sure you have followed the Quick Install
Guide. You should have your computers configured for DHCP mode and have
proxies disabled on your browsers. Upon accessing the router, if the browser
still displays a login redirection page, you should check your browser's settings
and ensure that JavaScript support is enabled. If the Log In page is not
attainable, you must delete your temporary Internet files to clear the web
browser cache.
Figure 1-5: Log In
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Upon entering the Username and Password (“manager” and “friend” respectively) and then
clicking on the Log In button, if the user is logging-in for the first time, the user will be brought
to the Quick Start page. See Figure 1-6. The Quick Start page is meant for basic users who
only require easy connectivity to the Internet, without worrying about any other advance
configuration settings. If you are in doubt as to what values to use for Protocol, VPI and VCI,
please contact your service provider for assistance.
Figure 1-6: Quick Start
If your router is already configured, you will be directed to the Basic Home page.
See Figure 1-7
Figure 1-7: Basic Home
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Quick Start
5.2
If you have already configured your router and wish to change your current configuration, click
Quick Start under Basic. Figure 1-8 will appear.
Figure 1-8: Quick Start
Note. . .
After clicking on the Connect button, please ensure to click “Save Settings” to
register your username/password or any other changes.
LAN Configuration5.3
On one side of your router, you have your own Local Area Network (LAN) connections. This is
where you connect your local computers to the AT-AR256E. The router is normally configured
to automatically assign all computers on your network with Internet addresses.
To enable or disable DHCP, click LAN Configuration under Basic. This will bring up the page
as shown in Figure 1-9. The Start IP is where the DHCP Server starts assigning IP addresses.
This value must be greater than the router’s IP address. For example, if the router’s IP address is
192.168.1.1 (default), then the starting IP address must be 192.168.1.2 (or higher). The End IP is
where the DHCP Server stops assigning IP addresses. The ending IP address cannot exceed a
subnet limit of 254. Hence, the maximum value for our default gateway is 192.168.1.254. If the
DHCP Server runs out of IP addresses, users will not get access to network resources. If this
happens, you can increase the End IP address to the limit of 255 or reduce the Lease Time. The
Lease Time is the amount of time network users will be allowed connection to the router with
their current dynamic IP addresses. The amount of time is in units of seconds; the default value
is 3600 seconds (60 minutes). Note: if you change the Start/End IP values, make sure the values
are still within the same subnet as the router’s IP address. In other words, if the router’s IP
address is 192.168.1.1 (default) and you change the DHCP Server Start/End IP addresses to
192.168.2.2/192.168.2.100, you will not be able to communicate with the router if your
computer has DHCP enabled.
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In addition to the DHCP Server feature, the AT-AR256E supports the DHCP Relay function.
When the router is configured as DHCP Server, it assigns the IP addresses to LAN clients.
When the router is configured as DHCP Relay, it is responsible for forwarding the requests and
responses negotiating between the DHCP clients and server.
By turning off the DHCP Server and Relay, the network administrator must carefully configure
the IP address, Subnet mask and DNS server addresses of every computer on your network. Do
not assign the same IP address to more than one computer, and your router must be on the same
subnet as all the other computers.
Figure 1-9: LAN Configuration
Diagnostics5.4
Diagnostic test is used for investigating whether the router is properly connected to the WAN.
See Figure 1-10. This test takes a few seconds to complete. To perform the test, click
Diagnostics under Basic and then click on the Test button. Before running this test, please
ensure that you have a valid DSL connection.
Figure 1-10: Diagnostics
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After running Diagnostics, the page will display the test results. For more information, please
click on the Help links.
See Figure 1-11
Figure 1-11: Diagnostics (Test Results)
5.4.1 Ping Test
Once you have your router configured, ensure you can ping the network. You can access the
Ping Test page by clicking on the “here” hyperlink in Diagnostics page. See Figure 1-11. Enter
the target IP address that you wish to ping. If your computer is connected to the router via the
default DHCP configuration, you should be able to ping the router’s IP address (192.168.1.1).
See Figure 1-12. If your ISP provided their server address, try to ping that address. If the pings
for both the WAN and LAN addresses are complete and you have the proper protocols
configured, you should be able to surf the Internet. By default when you click on the Test
button, the router will ping itself 3 times. The router passed the Ping Test; this basically means
that the TCP/IP protocol is up and running. If this first Ping Test does not pass, the TCP/IP
protocol is not loaded for some reason; you should restart the router.
Figure 1-12: Ping Test
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5.4.2 Modem Test
This test can be used to check whether your modem is properly connected to the network. Select
your Connection and Test Type, and then click on the Test button.
See Figure 1-13
Figure 1-13: Modem Test
Advanced5.5
This mode is catered for advance users, a brief explanation of the links are listed as shown in
Figure 1-14 below.
Figure 1-14: Advanced
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