Conguration Tasks for ICMP................................................................................................................................399
UDP Helper.....................................................................................................................................................................399
Congure UDP Helper............................................................................................................................................ 399
Important Points to Remember............................................................................................................................. 399
Enabling UDP Helper...............................................................................................................................................400
Congurations Using UDP Helper............................................................................................................................... 400
UDP Helper with Broadcast-All Addresses...........................................................................................................400
UDP Helper with Subnet Broadcast Addresses................................................................................................... 401
UDP Helper with Congured Broadcast Addresses.............................................................................................401
UDP Helper with No Congured Broadcast Addresses......................................................................................402
Troubleshooting UDP Helper........................................................................................................................................ 402
27 IPv6 Routing............................................................................................................................................ 404
Protocol Overview.........................................................................................................................................................404
Extended Address Space........................................................................................................................................405
Stateless Autoconguration................................................................................................................................... 405
IPv6 Header Fields........................................................................................................................................................ 406
Version (4 bits).........................................................................................................................................................406
Trac Class (8 bits)................................................................................................................................................ 406
Flow Label (20 bits).................................................................................................................................................406
Payload Length (16 bits).........................................................................................................................................406
Next Header (8 bits)................................................................................................................................................407
Hop Limit (8 bits).....................................................................................................................................................407
Source Address (128 bits).......................................................................................................................................408
Destination Address (128 bits)............................................................................................................................... 408
Extension Header Fields............................................................................................................................................... 408
Hop-by-Hop Options Header.................................................................................................................................408
Addressing...................................................................................................................................................................... 409
Link-local Addresses................................................................................................................................................409
Static and Dynamic Addressing............................................................................................................................. 409
Implementing IPv6 with the Dell Networking OS.......................................................................................................410
ICMPv6.............................................................................................................................................................................411
Path MTU Discovery......................................................................................................................................................412
IPv6 Neighbor Discovery...............................................................................................................................................412
IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 413
Conguration Task List for IPv6 RDNSS..................................................................................................................... 413
Conguring the IPv6 Recursive DNS Server........................................................................................................ 413
Displaying IPv6 RDNSS Information.......................................................................................................................414
Debugging IPv6 RDNSS Information Sent to the Host ......................................................................................414
IPv6 Multicast.................................................................................................................................................................414
Conguration Task List for IPv6................................................................................................................................... 415
Adjusting Your CAM-Prole.....................................................................................................................................415
Assigning an IPv6 Address to an Interface............................................................................................................416
Assigning a Static IPv6 Route.................................................................................................................................416
Conguring Telnet with IPv6...................................................................................................................................417
SNMP over IPv6.......................................................................................................................................................417
Contents
15