Concept Guide

Enabling ARP Learning via Gratuitous ARP................................................................................................................399
ARP Learning via ARP Request................................................................................................................................... 399
Conguring ARP Retries...............................................................................................................................................400
ICMP................................................................................................................................................................................ 401
Conguration Tasks for ICMP.......................................................................................................................................401
Enabling ICMP Unreachable Messages.......................................................................................................................401
ICMP Redirects...............................................................................................................................................................401
UDP Helper.....................................................................................................................................................................402
Congure UDP Helper.............................................................................................................................................402
Important Points to Remember............................................................................................................................. 403
Enabling UDP Helper.....................................................................................................................................................403
Congurations Using UDP Helper............................................................................................................................... 403
UDP Helper with Broadcast-All Addresses.................................................................................................................403
UDP Helper with Subnet Broadcast Addresses.........................................................................................................404
UDP Helper with Congured Broadcast Addresses..................................................................................................405
UDP Helper with No Congured Broadcast Addresses............................................................................................405
Troubleshooting UDP Helper........................................................................................................................................405
22 IPv6 Routing............................................................................................................................................ 407
Protocol Overview......................................................................................................................................................... 407
Extended Address Space........................................................................................................................................408
Stateless Autoconguration................................................................................................................................... 408
IPv6 Headers............................................................................................................................................................408
IPv6 Header Fields.................................................................................................................................................. 409
Extension Header Fields........................................................................................................................................... 411
Addressing.................................................................................................................................................................412
Implementing IPv6 with Dell EMC Networking OS....................................................................................................413
ICMPv6............................................................................................................................................................................414
Path MTU discovery...................................................................................................................................................... 415
IPv6 Neighbor Discovery...............................................................................................................................................415
IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 416
Conguration Task List for IPv6 RDNSS.....................................................................................................................416
Conguring the IPv6 Recursive DNS Server........................................................................................................416
Debugging IPv6 RDNSS Information Sent to the Host ......................................................................................417
Displaying IPv6 RDNSS Information.......................................................................................................................418
Secure Shell (SSH) Over an IPv6 Transport...............................................................................................................418
Conguration Tasks for IPv6.........................................................................................................................................419
Adjusting Your CAM-Prole.....................................................................................................................................419
Assigning an IPv6 Address to an Interface...........................................................................................................420
Assigning a Static IPv6 Route................................................................................................................................420
Conguring Telnet with IPv6...................................................................................................................................421
SNMP over IPv6.......................................................................................................................................................421
Displaying IPv6 Information.....................................................................................................................................421
Displaying an IPv6 Interface Information.............................................................................................................. 422
Showing IPv6 Routes..............................................................................................................................................422
Showing the Running-Conguration for an Interface......................................................................................... 424
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