Allied Telesis AT-AR240E User manual

ADSL
Bridge/Routers
AT-AR240E
AT-AR250E
K
User’s
Guide
®
PN 613-50197-00 Rev A

Copyright  2001 Allied Telesyn International, Corp.
960 Stewart Drive Suite , Sunnyvale, CA 94085 USA
All rights reserved. No part of this publication may be reproduced without prior written permission from
Allied Telesyn International, Corp.
All other product names, company names, logos or other designations mentioned herein are trademarks
or registered trademarks of their respective owners.
Allied Telesyn International, Corp. reserves the right to make changes in specifications and other
information contained in this document without prior written notice. The information provided herein is
subject to change without notice. In no event shall Allied Telesyn International, Corp. be liable for any
incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost
profits, arising out of or related to this manual or the information contained herein, even if Allied
Telesyn International, Corp. has been advised of, known, or should have known, the possibility of such
damages.

FCC Notice
iii
FCC NOTICE
According to Federal Communications Commission (FCC) Rules
regarding radio frequency emissions, the ADSL device complies
with FCC Part 15 for Class B computing devices. The following
paragraph is required by the FCC.
This equipment generates, uses and can radiate radio frequency
energy and if not installed and used in accordance with this
document, may cause interference to radio communications. It
has been tested and found to comply with the limits for a Class B
computing device pursuant to Part 15 of FCC Rules. These limits
are designed to provide reasonable protection against such
interference when the equipment is operated in a commercial
environment. Operation of this equipment in a residential area is
likely to cause interference, in which case, the user, at his own
expense, is required to take whatever measures may be necessary
to correct the interference. If this equipment does cause harmful
interference to radio or television reception, the user is
encouraged to try to correct the interference by one or more of the
following measures:
• Turn the equipment “OFF” and “ON”.
• Reorient or relocate the receiving antenna.
• Increase the distance between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from
that to which the receiver is connected.

FCC Notice
iv
NOTE
Any changes or modifications not
expressly approved by the grantee of
this device could void the user’s
authority to operate the equipment.
Meets Canadian D.O.C.
This product conforms with Canadian Class B Emissions
Regulations.
Meets Approvals
Safety : FCC Part 68, EN60950, UL 1950, C/UL to CSA 22.2
No.950, TUV, IC CS03
Emissions : FCC Part 15 Class B, EN55022 / CISPR2 Class B
Immunity : EN55024
Warning
Use minimum of 26 AWG line cord for the DSL
connection.

Table of Contents
v
TABLE OF CONTENTS
FCC Notice ........................................................................................iii
Introduction ....................................................................................viii
Package Contents ...............................................................................ix
Minimum PC Requirements ...............................................................ix
Chapter 1
Product Description .......................................................................... 1
1.1 Introduction ..................................................................................1
1.2 Product Description ...................................................................... 2
1.3 Front Status Indicators ..................................................................3
1.4 AT-AR240E Rear Panel ............................................................... 4
1.5 AT-AR250E Rear Panel ............................................................... 5
1.6 System Inter-operability ............................................................... 6
1.7 System Interface (LAN) ............................................................... 7
1.8 System Interface (DSL) ................................................................ 8
1.9 Installation and Configuration ...................................................... 8
Chapter 2
Operation ...........................................................................................9
2.1 Introduction ..................................................................................9
2.2 System Description ..................................................................... 10
2.3 Routing ....................................................................................... 10
2.4 Network Address Translation ..................................................... 11
2.5 Static Routing ............................................................................. 12
2.6 Bridging ......................................................................................12
2.7 Point-to-Point Protocol ............................................................... 13
2.8 Security ....................................................................................... 14
2.9 PC Setup for Telnet ....................................................................15

Table of Contents
vi
2.10 USB Port Setup ........................................................................16
2.11 ADSL Transmission ................................................................. 17
2.12 ATM Transmission ................................................................... 17
2.13 BOOTP Download Procedure .................................................. 18
2.14 Updating Firmware via TFTP .................................................. 22
Chapter 3
Applications ..................................................................................... 25
3.1 Introduction ................................................................................25
3.2 High-Speed Internet Access ....................................................... 26
3.3 Remote Locations Connectivity ................................................. 27
3.4 LAN-to-LAN Connectivity ........................................................ 28
Chapter 4
Advanced Configuration ................................................................. 29
4.1 Introduction ................................................................................29
4.2 Accessing the Advanced Configuration Mode ...........................30
4.3 Main Statistics Screen ................................................................31
4.4 File Drop-down Menu ................................................................32
4.5 Configuration Drop-down Menu ................................................ 33
4.5.1 Configuration Menu - Advanced Configuration .............. 34
4.5.2 Configuration Menu - Security ........................................ 35
4.6 Operation Drop-down Menu ...................................................... 37
4.6.1 Operation Menu - View Performance .............................. 37
4.7 Help Menu ..................................................................................38
Chapter 5
Command Line Interface Commands ........................................... 39
5.1 Introduction ................................................................................39
5.2 Changing the Password .............................................................. 40
5.3 Update Flash Memory ................................................................40
5.4 System Console Commands ....................................................... 41
5.4.1 Bridge Commands .......................................................... 41
5.4.2 DHCP Client Commands ................................................. 44

Table of Contents
vii
5.4.3 DHCP Server Commands ................................................ 46
5.4.4 NAT Commands ..............................................................48
5.4.5 PPP Commands ................................................................ 52
5.4.6 RFC1483 Commands ....................................................... 59
5.4.7 TCP/IP Commands ..........................................................59
5.4.8 TFTP Commands ............................................................. 70
5.5 ADSL Commands ...................................................................... 71
5.5.1 Help ..................................................................................71
5.5.2 Info ................................................................................... 72
5.5.3 Setting ..............................................................................72
5.5.4 Activate ............................................................................75
5.5.5 Loopback ......................................................................... 76
5.5.6 Status ................................................................................77
5.5.7 ATM ................................................................................. 79
5.5.8 Performance ..................................................................... 80
5.5.9 Debug ............................................................................... 81
5.5.10 HTUType ....................................................................... 84
5.6 Advanced CLI Commands ......................................................... 84
5.6.1 Bridge Settings ................................................................. 84
Appendix A
Troubleshooting Guide ................................................................... 97
Appendix B
Specifications of AT-AR240E .......................................................107
Appendix C
Specifications of AT-AR250E .......................................................111
Appendix D
Interface Pin Assignments ............................................................ 115
Appendix E
Default Settings ..............................................................................116

Introduction
viii
Introduction
The Broadband Intelligent Home Gateway (BIHG) is an emerging
new class of CPE device that grows with the home network without
requiring Service Providers to change their DSL provisioning.
Regardless if the connection is through the USB or the Ethernet
port, you are always on. For network expansion, a hub can be con-
nected to the Ethernet port.
The AT-AR240E and the AT-AR250E capabilities save money
during deployment by provisioning longer reach with more reliable
turn up, less truck rolls and more customer satisfaction by using the
BIHG feature. Both the AT-AR240E and the AT-AR250E’s
flexibility enables it to be set as a router to accommodate more
advanced business applications.
With the ADSL device, investments are protected through the
support of popular DSL connection models which are also industry-
standard interface options such as PPP over Ethernet (PPPoE) and
PPP over ATM (PPPoA), Bridging and Routing.

Introduction
ix
Package Contents
1. AT-AR240E OR AT-AR250E ADSL Bridge/Router
2. DSL Cable (RJ-11, green cable)
3. Ethernet Cable (RJ-45, yellow cable)
4. USB Cable (grey cable)
5. Power Cord (not included with the AT-AR250E)
6. Power Adapter
7. CD with the GUI, USB Drivers and Documentation
Minimum PC Requirements
= A PC with an installed 10BaseT Ethernet card or USB interface.
= TCP/IP network protocol installed on the PC.
= Windows 95 (USB port may have some compatibility issues),
Windows 98, Windows 2000, Windows NT 4.0 (no support for
USB) or Windows Me.
= For Ethernet connectivity to the ADSL devices, any Operating
System with the TCP/IP protocol such as Linux, Mac, OS2 may
be used.

Chapter 1
1
C HAPTER
1
P RODUCT D ESCRIPTION
1.1 Introduction
This chapter describes the physical and functional properties of the
AT-AR240E and the AT-AR250E ADSL Bridge/Router.