Concept Guide

ARP Learning via Gratuitous ARP............................................................................................................................... 406
Enabling ARP Learning via Gratuitous ARP................................................................................................................406
ARP Learning via ARP Request................................................................................................................................... 406
Conguring ARP Retries............................................................................................................................................... 407
ICMP............................................................................................................................................................................... 408
Conguration Tasks for ICMP......................................................................................................................................408
Enabling ICMP Unreachable Messages...................................................................................................................... 408
ICMP Redirects..............................................................................................................................................................408
UDP Helper.....................................................................................................................................................................409
Congure UDP Helper............................................................................................................................................ 409
Important Points to Remember.............................................................................................................................. 410
Enabling UDP Helper......................................................................................................................................................410
Congurations Using UDP Helper................................................................................................................................ 410
UDP Helper with Broadcast-All Addresses................................................................................................................. 410
UDP Helper with Subnet Broadcast Addresses.......................................................................................................... 411
UDP Helper with Congured Broadcast Addresses...................................................................................................412
UDP Helper with No Congured Broadcast Addresses.............................................................................................412
Troubleshooting UDP Helper.........................................................................................................................................412
22 IPv6 Routing.............................................................................................................................................414
Protocol Overview..........................................................................................................................................................414
Extended Address Space........................................................................................................................................ 415
Stateless Autoconguration....................................................................................................................................415
IPv6 Headers.............................................................................................................................................................415
IPv6 Header Fields................................................................................................................................................... 416
Extension Header Fields.......................................................................................................................................... 418
Addressing.................................................................................................................................................................419
Implementing IPv6 with Dell EMC Networking OS................................................................................................... 420
ICMPv6............................................................................................................................................................................421
Path MTU discovery......................................................................................................................................................422
IPv6 Neighbor Discovery.............................................................................................................................................. 422
IPv6 Neighbor Discovery of MTU Packets...........................................................................................................423
Conguration Task List for IPv6 RDNSS.................................................................................................................... 423
Conguring the IPv6 Recursive DNS Server....................................................................................................... 423
Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 424
Displaying IPv6 RDNSS Information......................................................................................................................425
Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 425
Conguration Tasks for IPv6........................................................................................................................................ 426
Adjusting Your CAM-Prole....................................................................................................................................426
Assigning an IPv6 Address to an Interface........................................................................................................... 427
Assigning a Static IPv6 Route................................................................................................................................ 427
Conguring Telnet with IPv6..................................................................................................................................428
SNMP over IPv6......................................................................................................................................................428
Displaying IPv6 Information.................................................................................................................................... 428
Displaying an IPv6 Interface Information.............................................................................................................. 429
Showing IPv6 Routes..............................................................................................................................................429
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