Administrator Guide

ARP Learning via Gratuitous ARP..................................................................................................... 368
Enabling ARP Learning via Gratuitous ARP......................................................................................369
ARP Learning via ARP Request......................................................................................................... 369
Configuring ARP Retries................................................................................................................... 370
ICMP...................................................................................................................................................371
Configuration Tasks for ICMP...........................................................................................................371
Enabling ICMP Unreachable Messages............................................................................................ 371
UDP Helper........................................................................................................................................ 371
Configure UDP Helper.................................................................................................................371
Important Points to Remember..................................................................................................372
Enabling UDP Helper........................................................................................................................ 372
Configuring a Broadcast Address.....................................................................................................372
Configurations Using UDP Helper....................................................................................................373
UDP Helper with Broadcast-All Addresses...................................................................................... 373
UDP Helper with Subnet Broadcast Addresses................................................................................374
UDP Helper with Configured Broadcast Addresses.........................................................................375
UDP Helper with No Configured Broadcast Addresses...................................................................375
Troubleshooting UDP Helper........................................................................................................... 375
22 IPv6 Routing........................................................................................................ 377
Protocol Overview............................................................................................................................ 377
Extended Address Space.............................................................................................................377
Stateless Autoconfiguration........................................................................................................377
IPv6 Headers................................................................................................................................378
IPv6 Header Fields.......................................................................................................................379
Extension Header Fields............................................................................................................. 380
Addressing................................................................................................................................... 381
Implementing IPv6 with Dell Networking OS..................................................................................383
ICMPv6.............................................................................................................................................. 385
Path MTU Discovery......................................................................................................................... 385
IPv6 Neighbor Discovery..................................................................................................................386
IPv6 Neighbor Discovery of MTU Packets................................................................................. 387
Configuration Task List for IPv6 RDNSS...........................................................................................387
Configuring the IPv6 Recursive DNS Server.............................................................................. 387
Debugging IPv6 RDNSS Information Sent to the Host ............................................................ 388
Displaying IPv6 RDNSS Information...........................................................................................389
Secure Shell (SSH) Over an IPv6 Transport..................................................................................... 390
Configuration Tasks for IPv6............................................................................................................390
Adjusting Your CAM-Profile....................................................................................................... 390
Assigning an IPv6 Address to an Interface................................................................................. 391
Assigning a Static IPv6 Route......................................................................................................391
Configuring Telnet with IPv6......................................................................................................392