Enabling Dynamic Resolution of Host Names............................................................................................................438
Specifying the Local System Domain and a List of Domains................................................................................... 439
Conguring DNS with Traceroute................................................................................................................................439
ARP................................................................................................................................................................................. 440
Conguration Tasks for ARP........................................................................................................................................ 440
Conguring Static ARP Entries....................................................................................................................................440
Enabling Proxy ARP........................................................................................................................................................441
Clearing ARP Cache.......................................................................................................................................................441
ARP Learning via Gratuitous ARP................................................................................................................................ 441
Enabling ARP Learning via Gratuitous ARP................................................................................................................442
ARP Learning via ARP Request................................................................................................................................... 442
Conguring ARP Retries...............................................................................................................................................443
ICMP............................................................................................................................................................................... 443
Conguration Tasks for ICMP...................................................................................................................................... 443
Enabling ICMP Unreachable Messages...................................................................................................................... 443
ICMP Redirects..............................................................................................................................................................444
UDP Helper.....................................................................................................................................................................445
Congure UDP Helper.............................................................................................................................................445
Important Points to Remember............................................................................................................................. 445
Enabling UDP Helper.....................................................................................................................................................445
Congurations Using UDP Helper............................................................................................................................... 445
UDP Helper with Broadcast-All Addresses.................................................................................................................446
UDP Helper with Subnet Broadcast Addresses.........................................................................................................446
UDP Helper with Congured Broadcast Addresses.................................................................................................. 447
UDP Helper with No Congured Broadcast Addresses............................................................................................447
Troubleshooting UDP Helper........................................................................................................................................ 448
21 IPv6 Routing............................................................................................................................................ 449
Protocol Overview.........................................................................................................................................................449
Extended Address Space........................................................................................................................................450
Stateless Autoconguration................................................................................................................................... 450
IPv6 Headers............................................................................................................................................................450
Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 451
IPv6 Header Fields...................................................................................................................................................452
Extension Header Fields..........................................................................................................................................454
Addressing................................................................................................................................................................455
Implementing IPv6 with Dell EMC Networking OS...................................................................................................456
ICMPv6........................................................................................................................................................................... 457
Path MTU discovery..................................................................................................................................................... 458
IPv6 Neighbor Discovery..............................................................................................................................................458
IPv6 Neighbor Discovery of MTU Packets...........................................................................................................459
Conguring the IPv6 Recursive DNS Server....................................................................................................... 459
Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................460
Displaying IPv6 RDNSS Information......................................................................................................................460
Secure Shell (SSH) Over an IPv6 Transport...............................................................................................................461
Conguration Tasks for IPv6.........................................................................................................................................461
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