Users Guide

Conguration Tasks for ICMP...................................................................................................................................... 406
Enabling ICMP Unreachable Messages...................................................................................................................... 406
UDP Helper.....................................................................................................................................................................407
Congure UDP Helper.............................................................................................................................................407
Important Points to Remember..............................................................................................................................407
Enabling UDP Helper..................................................................................................................................................... 407
Conguring a Broadcast Address................................................................................................................................ 407
Congurations Using UDP Helper............................................................................................................................... 408
UDP Helper with Broadcast-All Addresses.................................................................................................................408
UDP Helper with Subnet Broadcast Addresses.........................................................................................................409
UDP Helper with Congured Broadcast Addresses..................................................................................................409
UDP Helper with No Congured Broadcast Addresses............................................................................................ 410
Troubleshooting UDP Helper.........................................................................................................................................410
21 IPv6 Routing..............................................................................................................................................411
Protocol Overview...........................................................................................................................................................411
Extended Address Space.........................................................................................................................................412
Stateless Autoconguration.................................................................................................................................... 412
IPv6 Headers.............................................................................................................................................................412
Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 413
IPv6 Header Fields................................................................................................................................................... 414
Extension Header Fields.......................................................................................................................................... 416
Addressing................................................................................................................................................................. 417
Implementing IPv6 with Dell Networking OS..............................................................................................................418
ICMPv6............................................................................................................................................................................418
Path MTU Discovery......................................................................................................................................................418
IPv6 Neighbor Discovery...............................................................................................................................................419
IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 419
Conguring the IPv6 Recursive DNS Server........................................................................................................419
Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 420
Displaying IPv6 RDNSS Information.......................................................................................................................421
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................... 421
Conguration Tasks for IPv6........................................................................................................................................ 422
Adjusting Your CAM-Prole....................................................................................................................................422
Assigning an IPv6 Address to an Interface........................................................................................................... 423
Assigning a Static IPv6 Route................................................................................................................................ 423
Conguring Telnet with IPv6.................................................................................................................................. 424
SNMP over IPv6......................................................................................................................................................424
Displaying IPv6 Information.................................................................................................................................... 424
Displaying an IPv6 Interface Information.............................................................................................................. 425
Showing IPv6 Routes..............................................................................................................................................426
Showing the Running-Conguration for an Interface......................................................................................... 427
Clearing IPv6 Routes............................................................................................................................................... 427
Conguring IPv6 RA Guard.......................................................................................................................................... 428
Conguring IPv6 RA Guard on an Interface.........................................................................................................429
Monitoring IPv6 RA Guard..................................................................................................................................... 430
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