Concept Guide

Congure Static Routes for the Management Interface...........................................................................................391
IPv4 Path MTU Discovery Overview.......................................................................................................................... 392
Packet handling during MTU mismatch................................................................................................................392
Using the Congured Source IP Address in ICMP Messages..................................................................................392
Conguring the ICMP Source Interface............................................................................................................... 392
Conguring the Duration to Establish a TCP Connection........................................................................................ 393
Enabling Directed Broadcast........................................................................................................................................ 393
Resolution of Host Names............................................................................................................................................393
Enabling Dynamic Resolution of Host Names............................................................................................................394
Specifying the Local System Domain and a List of Domains................................................................................... 394
Conguring DNS with Traceroute............................................................................................................................... 395
ARP................................................................................................................................................................................. 395
Conguration Tasks for ARP........................................................................................................................................ 396
Conguring Static ARP Entries....................................................................................................................................396
Enabling Proxy ARP.......................................................................................................................................................396
Clearing ARP Cache...................................................................................................................................................... 397
ARP Learning via Gratuitous ARP................................................................................................................................397
Enabling ARP Learning via Gratuitous ARP................................................................................................................397
ARP Learning via ARP Request................................................................................................................................... 397
Conguring ARP Retries...............................................................................................................................................398
ICMP............................................................................................................................................................................... 399
Conguration Tasks for ICMP......................................................................................................................................399
Enabling ICMP Unreachable Messages...................................................................................................................... 399
UDP Helper.....................................................................................................................................................................399
Congure UDP Helper............................................................................................................................................ 399
Important Points to Remember............................................................................................................................. 400
Enabling UDP Helper.....................................................................................................................................................400
Congurations Using UDP Helper............................................................................................................................... 400
UDP Helper with Broadcast-All Addresses.................................................................................................................400
UDP Helper with Subnet Broadcast Addresses......................................................................................................... 401
UDP Helper with Congured Broadcast Addresses..................................................................................................402
UDP Helper with No Congured Broadcast Addresses............................................................................................402
Troubleshooting UDP Helper........................................................................................................................................402
22 IPv6 Routing............................................................................................................................................404
Protocol Overview.........................................................................................................................................................404
Extended Address Space........................................................................................................................................405
Stateless Autoconguration................................................................................................................................... 405
IPv6 Headers............................................................................................................................................................405
IPv6 Header Fields.................................................................................................................................................. 406
Extension Header Fields......................................................................................................................................... 408
Addressing................................................................................................................................................................ 409
Implementing IPv6 with Dell EMC Networking OS....................................................................................................410
ICMPv6.............................................................................................................................................................................411
Path MTU discovery...................................................................................................................................................... 412
IPv6 Neighbor Discovery...............................................................................................................................................412
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