Administrator Guide

Enabling ARP Learning via Gratuitous ARP................................................................................................................ 441
ARP Learning via ARP Request....................................................................................................................................441
Configuring ARP Retries...............................................................................................................................................442
ICMP............................................................................................................................................................................... 443
Configuration Tasks for ICMP..................................................................................................................................... 443
Enabling ICMP Unreachable Messages...................................................................................................................... 443
UDP Helper.....................................................................................................................................................................443
Configure UDP Helper............................................................................................................................................ 443
Important Points to Remember............................................................................................................................. 444
Enabling UDP Helper.....................................................................................................................................................444
Configuring a Broadcast Address................................................................................................................................444
Configurations Using UDP Helper............................................................................................................................... 445
UDP Helper with Broadcast-All Addresses................................................................................................................ 445
UDP Helper with Subnet Broadcast Addresses........................................................................................................ 446
UDP Helper with Configured Broadcast Addresses..................................................................................................446
UDP Helper with No Configured Broadcast Addresses............................................................................................447
Troubleshooting UDP Helper........................................................................................................................................447
25 IPv6 Routing............................................................................................................................................448
Protocol Overview.........................................................................................................................................................448
Extended Address Space........................................................................................................................................449
Stateless Autoconfiguration...................................................................................................................................449
IPv6 Headers............................................................................................................................................................449
IPv6 Header Fields.................................................................................................................................................. 450
Extension Header Fields......................................................................................................................................... 452
Addressing................................................................................................................................................................453
Implementing IPv6 with Dell Networking OS.............................................................................................................454
ICMPv6...........................................................................................................................................................................455
Path MTU Discovery.....................................................................................................................................................456
IPv6 Neighbor Discovery..............................................................................................................................................456
IPv6 Neighbor Discovery of MTU Packets.......................................................................................................... 457
Configuration Task List for IPv6 RDNSS....................................................................................................................457
Configuring the IPv6 Recursive DNS Server....................................................................................................... 457
Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................458
Displaying IPv6 RDNSS Information..................................................................................................................... 459
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................. 459
Configuration Tasks for IPv6....................................................................................................................................... 460
Adjusting Your CAM-Profile...................................................................................................................................460
Assigning an IPv6 Address to an Interface........................................................................................................... 461
Assigning a Static IPv6 Route................................................................................................................................ 461
Configuring Telnet with IPv6................................................................................................................................. 462
SNMP over IPv6......................................................................................................................................................462
Displaying IPv6 Information....................................................................................................................................462
Displaying an IPv6 Interface Information..............................................................................................................463
Showing IPv6 Routes..............................................................................................................................................463
Showing the Running-Configuration for an Interface........................................................................................ 465
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