API Guide

Table Of Contents
Path MTU discovery.......................................................................................................................................................379
IPv6 Neighbor Discovery...............................................................................................................................................379
IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 380
Configuration Task List for IPv6 RDNSS.................................................................................................................. 380
Configuring the IPv6 Recursive DNS Server..................................................................................................... 380
Debugging IPv6 RDNSS Information Sent to the Host ...................................................................................381
Displaying IPv6 RDNSS Information......................................................................................................................381
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................382
Configuration Tasks for IPv6....................................................................................................................................... 382
Adjusting Your CAM-Profile....................................................................................................................................382
Assigning an IPv6 Address to an Interface......................................................................................................... 383
Assigning a Static IPv6 Route................................................................................................................................383
Configuring Telnet with IPv6................................................................................................................................. 384
SNMP over IPv6........................................................................................................................................................384
Displaying IPv6 Information....................................................................................................................................385
Displaying an IPv6 Interface Information............................................................................................................ 385
Showing IPv6 Routes...............................................................................................................................................386
Showing the Running-Configuration for an Interface...................................................................................... 387
Clearing IPv6 Routes................................................................................................................................................ 387
Disabling ND Entry Timeout....................................................................................................................................387
Configuring IPv6 RA Guard.......................................................................................................................................... 388
Configuring IPv6 RA Guard on an Interface....................................................................................................... 389
Monitoring IPv6 RA Guard......................................................................................................................................390
Chapter 23: Intermediate System to Intermediate System......................................................... 391
IS-IS Protocol Overview................................................................................................................................................ 391
IS-IS Addressing...............................................................................................................................................................391
Multi-Topology IS-IS...................................................................................................................................................... 392
Transition Mode.........................................................................................................................................................392
Interface Support......................................................................................................................................................392
Adjacencies.................................................................................................................................................................392
Graceful Restart..............................................................................................................................................................393
Timers.......................................................................................................................................................................... 393
Implementation Information......................................................................................................................................... 393
Configuration Information.............................................................................................................................................394
Configuration Tasks for IS-IS.................................................................................................................................394
Configuring the Distance of a Route.................................................................................................................... 401
Changing the IS-Type............................................................................................................................................... 401
Redistributing IPv4 Routes..................................................................................................................................... 403
Redistributing IPv6 Routes..................................................................................................................................... 404
Configuring Authentication Passwords............................................................................................................... 405
Setting the Overload Bit......................................................................................................................................... 405
Debugging IS-IS.........................................................................................................................................................406
IS-IS Metric Styles..........................................................................................................................................................406
Configure Metric Values................................................................................................................................................407
Maximum Values in the Routing Table................................................................................................................. 407
Change the IS-IS Metric Style in One Level Only............................................................................................. 407
Leaks from One Level to Another.........................................................................................................................408
Sample Configurations...................................................................................................................................................409
Contents
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