Users Guide

Enabling ICMP Unreachable Messages...................................................................................................................... 370
UDP Helper.....................................................................................................................................................................370
Congure UDP Helper.............................................................................................................................................370
Important Points to Remember.............................................................................................................................. 371
Enabling UDP Helper......................................................................................................................................................371
Conguring a Broadcast Address................................................................................................................................. 371
Congurations Using UDP Helper................................................................................................................................372
UDP Helper with Broadcast-All Addresses................................................................................................................. 372
UDP Helper with Subnet Broadcast Addresses.........................................................................................................373
UDP Helper with Congured Broadcast Addresses.................................................................................................. 373
UDP Helper with No Congured Broadcast Addresses............................................................................................ 374
Troubleshooting UDP Helper........................................................................................................................................ 374
22 IPv6 Routing............................................................................................................................................ 375
Protocol Overview......................................................................................................................................................... 375
Extended Address Space........................................................................................................................................376
Stateless Autoconguration....................................................................................................................................376
IPv6 Headers............................................................................................................................................................ 376
IPv6 Header Fields................................................................................................................................................... 377
Extension Header Fields..........................................................................................................................................379
Addressing................................................................................................................................................................ 380
Implementing IPv6 with Dell Networking OS..............................................................................................................381
ICMPv6...........................................................................................................................................................................382
Path MTU Discovery.....................................................................................................................................................383
IPv6 Neighbor Discovery.............................................................................................................................................. 383
IPv6 Neighbor Discovery of MTU Packets...........................................................................................................384
Conguration Task List for IPv6 RDNSS.................................................................................................................... 384
Conguring the IPv6 Recursive DNS Server....................................................................................................... 384
Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................385
Displaying IPv6 RDNSS Information......................................................................................................................386
Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 386
Conguration Tasks for IPv6........................................................................................................................................ 387
Adjusting Your CAM-Prole.................................................................................................................................... 387
Assigning an IPv6 Address to an Interface...........................................................................................................388
Assigning a Static IPv6 Route................................................................................................................................388
Conguring Telnet with IPv6..................................................................................................................................389
SNMP over IPv6......................................................................................................................................................389
Displaying IPv6 Information....................................................................................................................................389
Displaying an IPv6 Interface Information.............................................................................................................. 390
Showing IPv6 Routes..............................................................................................................................................390
Showing the Running-Conguration for an Interface.........................................................................................392
Clearing IPv6 Routes...............................................................................................................................................392
Disabling ND Entry Timeout................................................................................................................................... 392
Conguring IPv6 RA Guard.......................................................................................................................................... 393
Conguring IPv6 RA Guard on an Interface.........................................................................................................394
Monitoring IPv6 RA Guard..................................................................................................................................... 395
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