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AR SERIES ROUTER

SOFTWARE REFERENCE

Software Release 2.4.1

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AR Series Router Software Reference for Software Release 2.4.1

Document Number C613-03047-00 REV A.

Copyright 2002 Allied Telesyn International Corp.

19800 North Creek Parkway, Suite 200, Bothell, WA 98011, USA.

All rights reserved. No part of this publication may be reproduced without prior written

permission from Allied Telesyn.

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 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 has been advised of,

known, or should have known, the possibility of such damages.

All trademarks are the property of their respective owners.

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Contents

List of Figures

List of Tables

Preface

Purpose of this Manual .................................................................................. lxxiIntended Audience ....................................................................................... lxxiiStructure of this Manual .............................................................................. lxxiiiWhere To Find More Information .................................................................. lxxvStandards and Protocols ............................................................................... lxxvi

Supported Standards and Protocols ....................................................... lxxviObtaining Copies of Internet Protocols and Standards .......................... lxxviiiBackground Reading ............................................................................ lxxviii

Publicly Accessible Documents ..................................................................... lxxixConventions ................................................................................................. lxxxSpecial Feature Licences .............................................................................. lxxxiiiAllied Telesyn Offices and Locations ............................................................ lxxxiiiReaders Comments ..................................................................................... lxxxv

Command Summary

CHAPTER 1 Operation

Introduction ................................................................................................... 1-5The Command Processor ............................................................................... 1-5

Normal Mode and Security Mode ............................................................ 1-5

User Privilege Levels ................................................................................. 1-8Remote Security Officer ......................................................................... 1-10Entering Commands .............................................................................. 1-10Aliases ................................................................................................... 1-11Online Help ........................................................................................... 1-12Storing and Retrieving Configuration Information .................................. 1-12

The Graphical User Interface (GUI) ............................................................... 1-13Enabling and Disabling the GUI ............................................................. 1-13Accessing the GUI ................................................................................. 1-13

User Authentication Facility .......................................................................... 1-14The User Authentication Database ......................................................... 1-15Asynchronous Port Security ................................................................... 1-19

Telneting from the Router ...................................................................... 1-20Counters ............................................................................................... 1-20Semipermanent Manager Port ............................................................... 1-21

RADIUS ........................................................................................................ 1-21TACACS ...................................................................................................... 1-23
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iv AR Series Router Software Reference

Software Release 2.4.1C613-03047-00 REV A

Remote Management .................................................................................. 1-23Monitoring and Fault Diagnosis ................................................................... 1-24

Event Logging ....................................................................................... 1-24Restarts ................................................................................................. 1-24CPU Utilisation ...................................................................................... 1-24Memory ................................................................................................ 1-24Power Supply ........................................................................................ 1-25

Nonvolatile Storage (NVS) ............................................................................ 1-26FLASH Memory ............................................................................................ 1-26

Physical Characteristics .......................................................................... 1-27The File Subsystem ....................................................................................... 1-27

File Naming Conventions ....................................................................... 1-27Using Wildcards to Specify Groups of Files ............................................. 1-28Working With Files ................................................................................ 1-28

FLASH File System ........................................................................................ 1-29Working with FFS Files ........................................................................... 1-29Compaction .......................................................................................... 1-30FFS Messages ........................................................................................ 1-30

The Built-in Editor ........................................................................................ 1-30

HTTP Client and Server ................................................................................ 1-31Resolving Uniform Resource Locators (URLs) .......................................... 1-33

Mail Subsystem ............................................................................................ 1-33Configuration Examples ........................................................................ 1-34

Loading Files onto the Router ...................................................................... 1-35Trivial File Transfer Protocol (TFTP) .......................................................... 1-36Hypertext Transfer Protocol (HTTP) ......................................................... 1-36Lightweight Directory Access Protocol (LDAP) ........................................ 1-36

Software Releases and Patches ..................................................................... 1-38Releases ................................................................................................ 1-39Patches ................................................................................................. 1-40Router Startup Operations ..................................................................... 1-40

Downloading Releases and Patches into the Router ............................... 1-42Install Information ................................................................................. 1-42Examples ............................................................................................... 1-43

Special Feature Licences ............................................................................... 1-47Command Reference ................................................................................... 1-47

ACTIVATE FLASH COMPACTION ............................................................ 1-47ADD ALIAS ............................................................................................ 1-48ADD RADIUS SERVER ............................................................................ 1-49ADD TACACS SERVER ........................................................................... 1-50ADD USER ............................................................................................. 1-51ADD USER RSO ..................................................................................... 1-53CLEAR FLASH TOTALLY .......................................................................... 1-54CLEAR NVS TOTALLY ............................................................................. 1-54

COPY .................................................................................................... 1-55CREATE CONFIG .................................................................................... 1-55CREATE FFILE ......................................................................................... 1-56DELETE ALIAS ........................................................................................ 1-57DELETE FFILE ......................................................................................... 1-57DELETE FILE ........................................................................................... 1-58DELETE INSTALL ..................................................................................... 1-59DELETE MAIL ......................................................................................... 1-59DELETE NVS .......................................................................................... 1-60DELETE RADIUS SERVER ........................................................................ 1-60DELETE TACACS SERVER ....................................................................... 1-61DELETE USER ......................................................................................... 1-61

DELETE USER RSO ................................................................................. 1-62DESTROY PATCH ................................................................................... 1-62DISABLE FEATURE .................................................................................. 1-63
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SHOW EXCEPTION .............................................................................. 1-113SHOW FEATURE .................................................................................. 1-114SHOW FFILE ........................................................................................ 1-115SHOW FILE .......................................................................................... 1-117SHOW FLASH ...................................................................................... 1-118SHOW FLASH PHYSICAL ...................................................................... 1-119SHOW GUI .......................................................................................... 1-120SHOW HTTP CLIENT ............................................................................ 1-121SHOW HTTP DEBUG ............................................................................ 1-122SHOW HTTP SERVER ........................................................................... 1-123SHOW HTTP SESSION .......................................................................... 1-125SHOW INSTALL .................................................................................... 1-126SHOW LDAP ........................................................................................ 1-127SHOW LDAP REQUEST ........................................................................ 1-128SHOW LOADER ................................................................................... 1-129SHOW MAIL ........................................................................................ 1-130SHOW MANAGER ASYN ..................................................................... 1-132SHOW NVS ......................................................................................... 1-132SHOW NVS FREE ................................................................................. 1-133

SHOW PATCH ..................................................................................... 1-134SHOW RADIUS .................................................................................... 1-135SHOW RELEASE ................................................................................... 1-135SHOW STARTUP .................................................................................. 1-136SHOW SYSTEM ................................................................................... 1-137SHOW TACACS SERVER ...................................................................... 1-140SHOW TIME ........................................................................................ 1-140SHOW USER ........................................................................................ 1-140SHOW USER RSO ................................................................................ 1-144UPLOAD .............................................................................................. 1-146

CHAPTER 2 Interfaces

Introduction ................................................................................................... 2-3Naming interfaces .......................................................................................... 2-3

Simple Interface Names ........................................................................... 2-3Fully Qualified Interface Names ................................................................ 2-5

Ethernet ........................................................................................................ 2-6Encapsulations ........................................................................................ 2-7Configuration .......................................................................................... 2-9

Synchronous Interfaces ................................................................................ 2-12Encapsulations ...................................................................................... 2-12Modem Control Signals ......................................................................... 2-13Configuration ........................................................................................ 2-14

Asynchronous Interfaces .............................................................................. 2-16

Encapsulations ...................................................................................... 2-17Configuration ........................................................................................ 2-17Autobauding ......................................................................................... 2-22

Testing Serial Data Circuits ........................................................................... 2-22Carrier Detect ........................................................................................ 2-22Loop back ............................................................................................. 2-23Data indicators ...................................................................................... 2-23

Displaying Interfaces .................................................................................... 2-23Interface Link Traps ...................................................................................... 2-24Managing Interfaces with SNMP .................................................................. 2-24Command Reference ................................................................................... 2-25

CONNECT ASYN ................................................................................... 2-25DISABLE INTERFACE LINKTRAP .............................................................. 2-26DISABLE ASYN ...................................................................................... 2-26DISABLE SYN ......................................................................................... 2-27
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DISABLE SYN DEBUG ............................................................................. 2-27ENABLE ASYN ....................................................................................... 2-28ENABLE INTERFACE LINKTRAP ............................................................... 2-28ENABLE SYN .......................................................................................... 2-29ENABLE SYN DEBUG ............................................................................. 2-29PURGE ASYN ......................................................................................... 2-29RESET ASYN .......................................................................................... 2-30RESET ASYN COUNTER .......................................................................... 2-30RESET ASYN HISTORY ........................................................................... 2-31RESET ETH ............................................................................................. 2-32RESET ETH COUNTER ............................................................................ 2-32RESET INTERFACE COUNTER .................................................................. 2-33RESET SYN ............................................................................................ 2-33RESET SYN COUNTER ............................................................................ 2-34SET ASYN .............................................................................................. 2-35SET ETH SPEED ...................................................................................... 2-39SET INTERFACE MTU ............................................................................. 2-40SET INTERFACE TRAPLIMIT ..................................................................... 2-41SET SYN ................................................................................................ 2-41

SHOW ETH CONFIGURATION ................................................................ 2-44SHOW ETH COUNTER ........................................................................... 2-46SHOW ETH MACADDRESS .................................................................... 2-53SHOW ETH RECEIVE .............................................................................. 2-53SHOW ETH STATE .................................................................................. 2-54SHOW INTERFACE ................................................................................. 2-56SHOW ASYN ......................................................................................... 2-61SHOW SYN ........................................................................................... 2-67SHOW SYN COUNTER ........................................................................... 2-69

CHAPTER 3 Point-to-Point Protocol (PPP)

Introduction ................................................................................................... 3-3

The Point-to-Point Protocol ............................................................................ 3-3Encapsulation .......................................................................................... 3-3Control Protocols .................................................................................... 3-4LCP Options ............................................................................................ 3-5

Link Quality Management .............................................................................. 3-6Multilink PPP .................................................................................................. 3-7Bandwidth Allocation Protocol ....................................................................... 3-7Dial-On-Demand ............................................................................................ 3-8Leased Line Backup ........................................................................................ 3-9Bandwidth on Demand ................................................................................ 3-10Synchronous Dialling .................................................................................... 3-11PPP Over Ethernet ........................................................................................ 3-12

Templates .................................................................................................... 3-13PPP Callback ................................................................................................ 3-15Magic Number ............................................................................................. 3-16Authentication Protocols .............................................................................. 3-16

Password Authentication Protocol (PAP) ................................................. 3-17Challenge-Handshake Authentication Protocol (CHAP) .......................... 3-17Configuring Authentication ................................................................... 3-18

Assigning IP Addresses ................................................................................. 3-20PPP Link Management ................................................................................. 3-22Debugging PPP Links ................................................................................... 3-23Support for PPP ........................................................................................... 3-26Configuration Examples ............................................................................... 3-29

Configuring a PPP link ........................................................................... 3-29Multilink Aggregation ........................................................................... 3-32Dial on Demand Links ............................................................................ 3-34
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Link Quality Monitoring ......................................................................... 3-34Compression and Encryption ................................................................. 3-35Leased Line Backup ............................................................................... 3-36Bandwidth on Demand ......................................................................... 3-38Bandwidth on Demand with Leased Line Circuits and ISDN ................... 3-40

Command Reference ................................................................................... 3-42ACTIVATE PPP ....................................................................................... 3-42ADD PPP ............................................................................................... 3-43ADD PPP ACSERVICE ............................................................................. 3-47CREATE PPP ........................................................................................... 3-48CREATE PPP TEMPLATE .......................................................................... 3-54DELETE PPP ........................................................................................... 3-60DELETE PPP ACSERVICE ......................................................................... 3-60DESTROY PPP ........................................................................................ 3-61DESTROY PPP TEMPLATE ....................................................................... 3-61DISABLE PPP .......................................................................................... 3-62DISABLE PPP ACCESSCONCENTRATOR .................................................. 3-62DISABLE PPP DEBUG .............................................................................. 3-63DISABLE PPP TEMPLATE DEBUG ............................................................. 3-64

ENABLE PPP ........................................................................................... 3-65ENABLE PPP ACCESSCONCENTRATOR ................................................... 3-65ENABLE PPP DEBUG .............................................................................. 3-66ENABLE PPP TEMPLATE DEBUG ............................................................. 3-68PURGE PPP ............................................................................................ 3-69RESET PPP ............................................................................................. 3-69SET PPP ................................................................................................. 3-70SET PPP ACSERVICE ............................................................................... 3-77SET PPP TEMPLATE ................................................................................ 3-78SHOW PPP ............................................................................................ 3-83SHOW PPP CONFIG ............................................................................... 3-84SHOW PPP COUNT ................................................................................ 3-91

SHOW PPP DEBUG .............................................................................. 3-103SHOW PPP IDLETIMER ......................................................................... 3-104SHOW PPP LIMITS ............................................................................... 3-105SHOW PPP MULTILINK ......................................................................... 3-106SHOW PPP NAMESERVER .................................................................... 3-108SHOW PPP PPPOE ................................................................................ 3-109SHOW PPP TEMPLATE ......................................................................... 3-110SHOW PPP TXSTATUS .......................................................................... 3-114

CHAPTER 4 Frame Relay

Introduction ................................................................................................... 4-3Encapsulation ................................................................................................ 4-4

Data Link Connections ................................................................................... 4-6The Local Management Interface (LMI) .......................................................... 4-8Logical Interfaces ........................................................................................... 4-8Disabling or Resetting a Frame Relay Interface ............................................... 4-9Disabling or Resetting a Frame Relay DLC ...................................................... 4-9Slow-start Mechanism ................................................................................. 4-10Congestion Detection .................................................................................. 4-11

Detection using CLLM messages ............................................................ 4-11Detection using BECN bits ..................................................................... 4-11

Congestion Control Scheme ........................................................................ 4-12Support for Frame Relay .............................................................................. 4-13Encryption and Compression over Frame Relay ............................................. 4-14Troubleshooting Frame Relay Networks ........................................................ 4-15Configuring Frame Relay .............................................................................. 4-15
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Configuration Examples ............................................................................... 4-18Frame Relay without an LMI .................................................................. 4-18Frame Relay with an LMI ....................................................................... 4-22Using Frame Relay Logical Interfaces ...................................................... 4-24

Command Reference ................................................................................... 4-25ADD FRAMERELAY DLC ......................................................................... 4-25ADD FRAMERELAY LI ............................................................................. 4-26CREATE FRAMERELAY ........................................................................... 4-27DELETE FRAMERELAY DLC ..................................................................... 4-30DELETE FRAMERELAY LI ......................................................................... 4-30DESTROY FRAMERELAY ......................................................................... 4-31DISABLE FRAMERELAY .......................................................................... 4-31DISABLE FRAMERELAY CONGESTIONCONTROL ..................................... 4-32DISABLE FRAMERELAY DEBUG .............................................................. 4-32DISABLE FRAMERELAY DLC ................................................................... 4-33DISABLE FRAMERELAY DLC DEBUG ....................................................... 4-33DISABLE FRAMERELAY LI DEBUG ........................................................... 4-34DISABLE FRAMERELAY SLOWSTART ....................................................... 4-35ENABLE FRAMERELAY ........................................................................... 4-35

ENABLE FRAMERELAY CONGESTIONCONTROL ...................................... 4-36ENABLE FRAMERELAY DEBUG ............................................................... 4-36ENABLE FRAMERELAY DLC .................................................................... 4-37ENABLE FRAMERELAY DLC DEBUG ........................................................ 4-38ENABLE FRAMERELAY LI DEBUG ............................................................ 4-39ENABLE FRAMERELAY SLOWSTART ....................................................... 4-40RESET FRAMERELAY .............................................................................. 4-40RESET FRAMERELAY DLC ....................................................................... 4-41SET FRAMERELAY .................................................................................. 4-42SET FRAMERELAY DLC .......................................................................... 4-45SHOW FRAMERELAY ............................................................................. 4-46SHOW FRAMERELAY DLC ...................................................................... 4-56

SHOW FRAMERELAY LI .......................................................................... 4-62

CHAPTER 5 Integrated Services Digital Network (ISDN)

Introduction ................................................................................................... 5-4Basic Rate Access .................................................................................... 5-4Primary Rate Access ................................................................................. 5-7

Support for ISDN ......................................................................................... 5-13BRI Physical Layer ......................................................................................... 5-14

Configuring and Controlling the Basic Rate Interface ............................. 5-15Examining the Status of the Basic Rate Interface .................................... 5-17Monitoring Operation of the Basic Rate Interface .................................. 5-18

PRI Physical Layer ......................................................................................... 5-19

Configuring and Controlling the Primary Rate Interface ......................... 5-19Examining the Status of the Primary Rate Interface ................................ 5-22Monitoring Operation of the Primary Rate Interface ............................... 5-23

LAPD ........................................................................................................... 5-25BRI Versus PRI ........................................................................................ 5-25Operation .............................................................................................. 5-25Packet mode support ............................................................................ 5-25Fault Finding ......................................................................................... 5-26Default Setup ........................................................................................ 5-27Addressing ............................................................................................ 5-27Frame Control Fields .............................................................................. 5-28Non-Associated Signalling ..................................................................... 5-29
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Q.931 .......................................................................................................... 5-31Service Profile Identifiers (SPIDs) ............................................................. 5-32Profiles Which Require SPIDs .................................................................. 5-32Definition of SPIDs ................................................................................. 5-33SPID Initialisation ................................................................................... 5-33SPID Debugging .................................................................................... 5-34Automatic ISDN switch Detection .......................................................... 5-36

Call Control ................................................................................................. 5-37Call Logging ................................................................................................ 5-41Using a Domain Name Server ....................................................................... 5-42Slotted Interface Numbering ........................................................................ 5-42Always On/Dynamic ISDN (AODI) ................................................................. 5-42

Components of AODI ............................................................................ 5-43Configuring AODI ................................................................................. 5-44

Data Over Voice ........................................................................................... 5-46Configuration Examples ............................................................................... 5-47

A Basic ISDN Setup ................................................................................ 5-47Refining the ISDN Setup ........................................................................ 5-56

Command Reference ................................................................................... 5-57

ACTIVATE ISDN CALL ............................................................................ 5-57ACTIVATE Q931 ASPID .......................................................................... 5-58ACTIVATE Q931 MESSAGE .................................................................... 5-58ADD ISDN CALL .................................................................................... 5-59ADD ISDN CLILIST .................................................................................. 5-65ADD ISDN DOMAINNAME ..................................................................... 5-66ADD LAPD TEI ....................................................................................... 5-66ADD LAPD XSPID ................................................................................... 5-67ADD LAPD XTEI ..................................................................................... 5-67DEACTIVATE ISDN CALL ........................................................................ 5-68DELETE ISDN CALL ................................................................................ 5-68DELETE ISDN CLILIST .............................................................................. 5-69

DELETE ISDN DOMAINNAME ................................................................. 5-69DELETE LAPD TEI ................................................................................... 5-70DELETE LAPD XSPID ............................................................................... 5-70DELETE LAPD XTEI ................................................................................. 5-71DISABLE BRI CTEST ................................................................................ 5-71DISABLE BRI DEBUG .............................................................................. 5-72DISABLE BRI TEST .................................................................................. 5-72DISABLE ISDN CALL ............................................................................... 5-73DISABLE ISDN LOG ................................................................................ 5-74DISABLE PRI CTEST ................................................................................ 5-74DISABLE PRI DEBUG .............................................................................. 5-75DISABLE PRI TEST .................................................................................. 5-75DISABLE Q931 DEBUG .......................................................................... 5-76

ENABLE BRI CTEST ................................................................................. 5-77ENABLE BRI DEBUG ............................................................................... 5-78ENABLE BRI TEST ................................................................................... 5-79ENABLE ISDN CALL ................................................................................ 5-82ENABLE ISDN LOG ................................................................................. 5-83ENABLE PRI CTEST ................................................................................. 5-83ENABLE PRI DEBUG ............................................................................... 5-84ENABLE PRI TEST ................................................................................... 5-85ENABLE Q931 ASPID ............................................................................. 5-87ENABLE Q931 DEBUG ........................................................................... 5-87RESET BRI .............................................................................................. 5-92RESET BRI COUNTER .............................................................................. 5-93

RESET PRI .............................................................................................. 5-93RESET PRI COUNTER .............................................................................. 5-94RESET Q931 .......................................................................................... 5-94
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SET BRI .................................................................................................. 5-95SET ISDN CALL ...................................................................................... 5-97SET ISDN DOMAINNAME ..................................................................... 5-103SET ISDN LOG ..................................................................................... 5-103SET LAPD ............................................................................................ 5-104SET PRI ................................................................................................ 5-106SET Q931 ............................................................................................ 5-109SHOW BRI CONFIGURATION ............................................................... 5-112SHOW BRI COUNTER ........................................................................... 5-113SHOW BRI CTEST ................................................................................ 5-121SHOW BRI DEBUG ............................................................................... 5-122SHOW BRI STATE ................................................................................. 5-123SHOW BRI TEST ................................................................................... 5-126SHOW ISDN CALL ............................................................................... 5-131SHOW ISDN CLILIST ............................................................................. 5-136SHOW ISDN DOMAINNAME ................................................................ 5-137SHOW ISDN LOG ................................................................................. 5-137SHOW LAPD ........................................................................................ 5-139SHOW LAPD COUNT ........................................................................... 5-141

SHOW LAPD STATE ............................................................................. 5-143SHOW PRI CONFIGURATION ................................................................ 5-144SHOW PRI COUNTER ........................................................................... 5-145SHOW PRI CTEST ................................................................................. 5-155SHOW PRI DEBUG ............................................................................... 5-157SHOW PRI STATE ................................................................................. 5-158SHOW PRI TEST ................................................................................... 5-164SHOW Q931 ....................................................................................... 5-167SHOW Q931 SPID ............................................................................... 5-170

CHAPTER 6 X.25

Introduction ................................................................................................... 6-3

LAPB .............................................................................................................. 6-4DCE Mode ..................................................................................................... 6-4DTE Mode ..................................................................................................... 6-5DTE Addresses ............................................................................................... 6-7X.25 DCE Route Mapping .............................................................................. 6-7Encapsulations ............................................................................................... 6-8Configuring LAPB .......................................................................................... 6-9

Configuring an Interface for LAPB ......................................................... 6-10Configuring LAPB Interface Parameters ................................................. 6-10

Configuring X.25 DCE ................................................................................. 6-11Configure the LAPB Interface ................................................................ 6-11Configure the X.25 DCE Interface ......................................................... 6-11

Configuring DTE Addresses ................................................................... 6-12Configuring X.25 Route Mapping .......................................................... 6-12Configuring X.25 DCE TCP Keep Alive parameters ................................ 6-13Displaying and Debugging X.25 DCE Interfaces ..................................... 6-13

Configuring X.25 DTE .................................................................................. 6-14Configure the LAPB Interface ................................................................ 6-14Configure the X.25 DTE Interface .......................................................... 6-14Configuring Call Parameter Entries ........................................................ 6-15Configuring Permanent Virtual Circuits .................................................. 6-15

Hunt Groups ................................................................................................ 6-16Configuration Examples ............................................................................... 6-18

A Basic X.25 Setup ................................................................................ 6-18An Extended X.25 Setup ....................................................................... 6-24X.25 over ISDN D Channel ..................................................................... 6-30X.25 Hunt Groups ................................................................................. 6-31
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Command Reference ................................................................................... 6-37ACTIVATE MIOX CIRCUIT ...................................................................... 6-38ADD MIOX CIRCUIT .............................................................................. 6-39ADD X25C DTEADDRESS ....................................................................... 6-40ADD X25C HUNTGROUP ....................................................................... 6-41ADD X25C ROUTE ................................................................................. 6-42ADD X25T CPAR ................................................................................... 6-43CREATE LAPB ........................................................................................ 6-44CREATE X25C ....................................................................................... 6-45CREATE X25C HUNTGROUP .................................................................. 6-47CREATE X25T ........................................................................................ 6-48DEACTIVATE MIOX CIRCUIT .................................................................. 6-49DELETE MIOX CIRCUIT .......................................................................... 6-50DELETE X25C DTEADDRESS ................................................................... 6-51DELETE X25C HUNTGROUP ................................................................... 6-52DELETE X25C ROUTE ............................................................................. 6-52DELETE X25T CPAR ............................................................................... 6-53DESTROY LAPB ...................................................................................... 6-53DESTROY X25C ..................................................................................... 6-54

DESTROY X25C HUNTGROUP ............................................................... 6-54DESTROY X25T ..................................................................................... 6-55DISABLE MIOX CIRCUIT ......................................................................... 6-55DISABLE X25C DEBUG .......................................................................... 6-56ENABLE MIOX CIRCUIT .......................................................................... 6-56ENABLE X25C DEBUG ........................................................................... 6-57RESET LAPB ........................................................................................... 6-57RESET X25T ........................................................................................... 6-58SET LAPB ............................................................................................... 6-58SET MIOX .............................................................................................. 6-59SET MIOX CIRCUIT ................................................................................ 6-60SET X25C .............................................................................................. 6-62

SET X25C HUNTGROUP ......................................................................... 6-64SET X25C TCPKEEPALIVE ....................................................................... 6-65SET X25T ............................................................................................... 6-65SET X25T CPAR ..................................................................................... 6-67SHOW LAPB .......................................................................................... 6-68SHOW MIOX ......................................................................................... 6-72SHOW MIOX COUNT ............................................................................ 6-73SHOW MIOX CIRCUIT ........................................................................... 6-75SHOW X25C ......................................................................................... 6-79SHOW X25C COUNTER ......................................................................... 6-80SHOW X25C DTEADDRESS .................................................................... 6-82SHOW X25C HUNTGROUP .................................................................... 6-83SHOW X25C PATH ................................................................................ 6-84

SHOW X25C ROUTE .............................................................................. 6-85SHOW X25C STATE ............................................................................... 6-86SHOW X25C TCPKEEPALIVE .................................................................. 6-87SHOW X25T .......................................................................................... 6-87SHOW X25T CPAR ................................................................................ 6-92

CHAPTER 7 Synchronous Tunnelling

Introduction ................................................................................................... 7-2Support for Synchronous Tunnelling ............................................................... 7-2Configuration Example .................................................................................. 7-3Command Reference ..................................................................................... 7-4

ADD STT ................................................................................................. 7-4DELETE STT ............................................................................................. 7-5RESET STT ............................................................................................... 7-6SET STT ................................................................................................... 7-6SHOW STT .............................................................................................. 7-7
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CHAPTER 8 Internet Protocol (IP)

Introduction ................................................................................................... 8-5The Internet ................................................................................................... 8-5Addressing .................................................................................................... 8-7Subnets ......................................................................................................... 8-9Multihoming ................................................................................................ 8-10

Address Resolution ...................................................................................... 8-11DHCP Client ................................................................................................ 8-12ICMP ........................................................................................................... 8-13Routing ....................................................................................................... 8-13Routing Information Filters ........................................................................... 8-15

Route filters ........................................................................................... 8-15Trusted routers ...................................................................................... 8-16

RIP ............................................................................................................... 8-17EGP ............................................................................................................. 8-18OSPF ............................................................................................................ 8-19Metrics ........................................................................................................ 8-19Policy-Based Routing .................................................................................... 8-20Priority-Based Routing .................................................................................. 8-22Route Templates .......................................................................................... 8-24Named Hosts ............................................................................................... 8-24DNS Relay Agent ......................................................................................... 8-26DNS Caching ............................................................................................... 8-27Server Selection ........................................................................................... 8-28Traffic Filters ................................................................................................ 8-29SNMP .......................................................................................................... 8-32Control and Debug Commands ................................................................... 8-32Ping and Trace Route ................................................................................... 8-33Finger .......................................................................................................... 8-35

Example ................................................................................................ 8-35Security Options .......................................................................................... 8-37

Security Associations .................................................................................... 8-37Broadcast Forwarding .................................................................................. 8-39

Examples ............................................................................................... 8-39BOOTP Relay Agent ..................................................................................... 8-42IP Multicasting ............................................................................................. 8-43

Static Multicast Forwarding ................................................................... 8-44Network Address Translation ........................................................................ 8-45Remote Address Assignment ........................................................................ 8-47IP Address Pools ........................................................................................... 8-48Configuration Examples ............................................................................... 8-49

A Basic TCP/IP Setup .............................................................................. 8-49Troubleshooting .................................................................................... 8-53

Configuring IP Filters ............................................................................. 8-54Command Reference ................................................................................... 8-59ADD BOOTP RELAY ............................................................................... 8-59ADD IP ARP ........................................................................................... 8-60ADD IP ASPATHLIST ............................................................................... 8-61ADD IP COMMUNITYLIST ...................................................................... 8-62ADD IP DNS ........................................................................................... 8-63ADD IP EGP ........................................................................................... 8-64ADD IP FILTER ........................................................................................ 8-65ADD IP HELPER ...................................................................................... 8-71ADD IP HOST ......................................................................................... 8-72ADD IP INTERFACE ................................................................................ 8-73ADD IP NAT ........................................................................................... 8-77

ADD IP RIP ............................................................................................. 8-80ADD IP ROUTE ....................................................................................... 8-82ADD IP ROUTE FILTER ............................................................................ 8-84
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ADD IP ROUTE TEMPLATE ...................................................................... 8-86ADD IP ROUTEMAP ............................................................................... 8-88ADD IP SA ............................................................................................. 8-91ADD IP TRUSTED ................................................................................... 8-92CREATE IP POOL .................................................................................... 8-93DELETE BOOTP RELAY ........................................................................... 8-93DELETE IP ARP ....................................................................................... 8-94DELETE IP ASPATHLIST ........................................................................... 8-94DELETE IP COMMUNITYLIST .................................................................. 8-95DELETE IP DNS ....................................................................................... 8-95DELETE IP EGP ....................................................................................... 8-96DELETE IP FILTER .................................................................................... 8-96DELETE IP HELPER .................................................................................. 8-97DELETE IP HOST ..................................................................................... 8-98DELETE IP INTERFACE ............................................................................ 8-99DELETE IP NAT ..................................................................................... 8-100DELETE IP RIP ....................................................................................... 8-101DELETE IP ROUTE ................................................................................. 8-102DELETE IP ROUTE FILTER ...................................................................... 8-103

DELETE IP ROUTE TEMPLATE ................................................................ 8-103DELETE IP ROUTEMAP ......................................................................... 8-104DELETE IP SA ....................................................................................... 8-105DELETE IP TRUSTED ............................................................................. 8-105DELETE TCP ......................................................................................... 8-106DESTROY IP POOL ............................................................................... 8-107DISABLE BOOTP RELAY ........................................................................ 8-107DISABLE IP ........................................................................................... 8-108DISABLE IP DEBUG .............................................................................. 8-108DISABLE IP DNSRELAY ......................................................................... 8-109DISABLE IP ECHOREPLY ....................................................................... 8-109DISABLE IP EGP ................................................................................... 8-109

DISABLE IP EXPORTRIP ......................................................................... 8-110DISABLE IP FOFILTER ............................................................................ 8-110DISABLE IP FORWARDING .................................................................... 8-111DISABLE IP HELPER .............................................................................. 8-112DISABLE IP INTERFACE ......................................................................... 8-112DISABLE IP NAT ................................................................................... 8-113DISABLE IP REMOTEASSIGN ................................................................. 8-114DISABLE IP ROUTE ............................................................................... 8-114DISABLE IP SRCROUTE ......................................................................... 8-115DISABLE TELNET SERVER ..................................................................... 8-115ENABLE BOOTP RELAY ........................................................................ 8-116ENABLE IP ........................................................................................... 8-116ENABLE IP DEBUG ............................................................................... 8-117

ENABLE IP DNSRELAY .......................................................................... 8-117ENABLE IP ECHOREPLY ........................................................................ 8-117ENABLE IP EGP .................................................................................... 8-118ENABLE IP EXPORTRIP .......................................................................... 8-118ENABLE IP FOFILTER ............................................................................. 8-119ENABLE IP FORWARDING .................................................................... 8-120ENABLE IP HELPER ............................................................................... 8-120ENABLE IP INTERFACE .......................................................................... 8-121ENABLE IP NAT .................................................................................... 8-121ENABLE IP REMOTEASSIGN ................................................................. 8-122ENABLE IP ROUTE ................................................................................ 8-122ENABLE IP SRCROUTE .......................................................................... 8-123

ENABLE TELNET SERVER ...................................................................... 8-123FINGER ................................................................................................ 8-124PING ................................................................................................... 8-125
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PURGE BOOTP RELAY .......................................................................... 8-127PURGE IP ............................................................................................. 8-127RESET IP .............................................................................................. 8-128RESET IP COUNTER .............................................................................. 8-128RESET IP INTERFACE ............................................................................ 8-129SET BOOTP MAXHOPS ........................................................................ 8-129SET IP ARP ........................................................................................... 8-130SET IP ARP TIMEOUT ........................................................................... 8-131SET IP AUTONOMOUS ......................................................................... 8-131SET IP DNS .......................................................................................... 8-132SET IP DNS CACHE .............................................................................. 8-133SET IP DNSRELAY ................................................................................. 8-134SET IP FILTER ........................................................................................ 8-135SET IP HOST ........................................................................................ 8-138SET IP INTERFACE ................................................................................ 8-139SET IP LOCAL ...................................................................................... 8-142SET IP NAMESERVER ............................................................................ 8-144SET IP RIP ............................................................................................ 8-145SET IP RIPTIMER ................................................................................... 8-146

SET IP ROUTE ...................................................................................... 8-147SET IP ROUTE FILTER ............................................................................ 8-149SET IP ROUTE TEMPLATE ..................................................................... 8-150SET IP ROUTEMAP ............................................................................... 8-152SET IP SECONDARYNAMESERVER ........................................................ 8-154SET PING ............................................................................................. 8-155SET TRACE .......................................................................................... 8-157SHOW BOOTP RELAY .......................................................................... 8-159SHOW IP ............................................................................................. 8-160SHOW IP ARP ...................................................................................... 8-163SHOW IP ASPATHLIST .......................................................................... 8-164SHOW IP COMMUNITYLIST ................................................................. 8-165

SHOW IP COUNTER ............................................................................. 8-166SHOW IP DEBUG ................................................................................. 8-175SHOW IP DNS ...................................................................................... 8-176SHOW IP DNS CACHE ......................................................................... 8-178SHOW IP EGP ...................................................................................... 8-179SHOW IP FILTER ................................................................................... 8-180SHOW IP HELPER ................................................................................. 8-182SHOW IP HOST .................................................................................... 8-183SHOW IP INTERFACE ........................................................................... 8-184SHOW IP NAT ...................................................................................... 8-188SHOW IP POOL .................................................................................... 8-192SHOW IP RIP ........................................................................................ 8-194SHOW IP RIPTIMER .............................................................................. 8-196

SHOW IP RIP COUNTER ....................................................................... 8-197SHOW IP ROUTE .................................................................................. 8-198SHOW IP ROUTE FILTER ....................................................................... 8-203SHOW IP ROUTE MULTICAST ............................................................... 8-204SHOW IP ROUTE TEMPLATE ................................................................. 8-204SHOW IP ROUTEMAP .......................................................................... 8-206SHOW IP SA ........................................................................................ 8-207SHOW IP TRUSTED .............................................................................. 8-207SHOW IP UDP ...................................................................................... 8-208SHOW PING .........................