Administrator Guide

Important Points to Remember............................................................................................................................. 396
Enabling UDP Helper............................................................................................................................................... 397
Congurations Using UDP Helper................................................................................................................................397
UDP Helper with Broadcast-All Addresses...........................................................................................................397
UDP Helper with Subnet Broadcast Addresses...................................................................................................398
UDP Helper with Congured Broadcast Addresses............................................................................................398
UDP Helper with No Congured Broadcast Addresses......................................................................................399
Troubleshooting UDP Helper........................................................................................................................................399
27 IPv6 Routing.............................................................................................................................................401
Protocol Overview..........................................................................................................................................................401
Extended Address Space........................................................................................................................................402
Stateless Autoconguration................................................................................................................................... 402
IPv6 Header Fields.........................................................................................................................................................403
Version (4 bits).........................................................................................................................................................403
Trac Class (8 bits).................................................................................................................................................403
Flow Label (20 bits).................................................................................................................................................403
Payload Length (16 bits)......................................................................................................................................... 403
Next Header (8 bits)............................................................................................................................................... 404
Hop Limit (8 bits).....................................................................................................................................................404
Source Address (128 bits)...................................................................................................................................... 405
Destination Address (128 bits)............................................................................................................................... 405
Extension Header Fields............................................................................................................................................... 405
Hop-by-Hop Options Header.................................................................................................................................405
Addressing...................................................................................................................................................................... 406
Link-local Addresses................................................................................................................................................406
Static and Dynamic Addressing............................................................................................................................. 406
Implementing IPv6 with the Dell Networking OS...................................................................................................... 407
ICMPv6...........................................................................................................................................................................408
Path MTU Discovery.....................................................................................................................................................409
IPv6 Neighbor Discovery..............................................................................................................................................409
IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 410
Conguration Task List for IPv6 RDNSS..................................................................................................................... 410
Conguring the IPv6 Recursive DNS Server........................................................................................................410
Displaying IPv6 RDNSS Information....................................................................................................................... 411
Debugging IPv6 RDNSS Information Sent to the Host .......................................................................................411
IPv6 Multicast..................................................................................................................................................................411
Conguration Task List for IPv6................................................................................................................................... 412
Adjusting Your CAM-Prole.....................................................................................................................................412
Assigning an IPv6 Address to an Interface............................................................................................................413
Assigning a Static IPv6 Route.................................................................................................................................413
Conguring Telnet with IPv6...................................................................................................................................414
SNMP over IPv6.......................................................................................................................................................414
Showing IPv6 Information....................................................................................................................................... 414
Showing an IPv6 Interface...................................................................................................................................... 415
Showing IPv6 Routes...............................................................................................................................................415
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