Resolution of Host Names............................................................................................................................................445
Enabling Dynamic Resolution of Host Names............................................................................................................445
Specifying the Local System Domain and a List of Domains................................................................................... 445
Conguring DNS with Traceroute................................................................................................................................446
ARP..................................................................................................................................................................................447
Conguration Tasks for ARP........................................................................................................................................ 447
Conguring Static ARP Entries....................................................................................................................................447
Enabling Proxy ARP.......................................................................................................................................................448
Clearing ARP Cache......................................................................................................................................................448
ARP Learning via Gratuitous ARP................................................................................................................................448
Enabling ARP Learning via Gratuitous ARP................................................................................................................448
ARP Learning via ARP Request................................................................................................................................... 449
Conguring ARP Retries...............................................................................................................................................449
ICMP............................................................................................................................................................................... 450
Conguration Tasks for ICMP......................................................................................................................................450
Enabling ICMP Unreachable Messages...................................................................................................................... 450
ICMP Redirects..............................................................................................................................................................450
UDP Helper.....................................................................................................................................................................452
Congure UDP Helper.............................................................................................................................................452
Important Points to Remember............................................................................................................................. 452
Enabling UDP Helper.....................................................................................................................................................452
Congurations Using UDP Helper............................................................................................................................... 452
UDP Helper with Broadcast-All Addresses.................................................................................................................453
UDP Helper with Subnet Broadcast Addresses.........................................................................................................453
UDP Helper with Congured Broadcast Addresses..................................................................................................454
UDP Helper with No Congured Broadcast Addresses............................................................................................454
Troubleshooting UDP Helper........................................................................................................................................455
21 IPv6 Routing............................................................................................................................................ 456
Protocol Overview.........................................................................................................................................................456
Extended Address Space........................................................................................................................................457
Stateless Autoconguration....................................................................................................................................457
IPv6 Headers............................................................................................................................................................457
Longest Prex Match (LPM) Table and IPv6 /65 – /128 support................................................................... 458
IPv6 Header Fields...................................................................................................................................................459
Extension Header Fields.......................................................................................................................................... 461
Addressing................................................................................................................................................................ 462
Implementing IPv6 with Dell EMC Networking OS................................................................................................... 463
ICMPv6...........................................................................................................................................................................464
Path MTU discovery..................................................................................................................................................... 465
IPv6 Neighbor Discovery..............................................................................................................................................465
IPv6 Neighbor Discovery of MTU Packets...........................................................................................................466
Conguring the IPv6 Recursive DNS Server....................................................................................................... 466
Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 467
Displaying IPv6 RDNSS Information......................................................................................................................467
Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 468
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