Concept Guide

ManualsBrandsDell ManualsAccess PlatformsFN IO Module

Conguring IPSec .........................................................................................................................................................400

26 IPv4 Routing............................................................................................................................................402

IP Addresses...................................................................................................................................................................402

Implementation Information....................................................................................................................................403

Conguration Tasks for IP Addresses....................................................................................................................403

IPv4 Path MTU Discovery Overview.......................................................................................................................... 405

Packet handling during MTU mismatch ...............................................................................................................406

Using the Congured Source IP Address in ICMP Messages..................................................................................406

Conguring the ICMP Source Interface............................................................................................................... 406

Conguring the Duration to Establish a TCP Connection........................................................................................ 407

Enabling Directed Broadcast........................................................................................................................................ 407

Resolution of Host Names............................................................................................................................................407

Enabling Dynamic Resolution of Host Names......................................................................................................408

Specifying the Local System Domain and a List of Domains............................................................................. 408

Conguring DNS with Traceroute......................................................................................................................... 409

ARP................................................................................................................................................................................. 409

Conguration Tasks for ARP...................................................................................................................................410

ARP Learning via Gratuitous ARP................................................................................................................................. 411

ARP Learning via ARP Request.....................................................................................................................................411

Conguring ARP Retries................................................................................................................................................412

ICMP................................................................................................................................................................................ 413

Conguration Tasks for ICMP.................................................................................................................................413

ICMP Redirects...............................................................................................................................................................413

UDP Helper..................................................................................................................................................................... 414

Congure UDP Helper............................................................................................................................................. 414

Important Points to Remember.............................................................................................................................. 415

Enabling UDP Helper................................................................................................................................................415

Congurations Using UDP Helper................................................................................................................................ 415

UDP Helper with Broadcast-All Addresses........................................................................................................... 416

UDP Helper with Subnet Broadcast Addresses................................................................................................... 416

UDP Helper with Congured Broadcast Addresses.............................................................................................417

UDP Helper with No Congured Broadcast Addresses.......................................................................................417

Troubleshooting UDP Helper.........................................................................................................................................418

27 IPv6 Routing.............................................................................................................................................419

Protocol Overview..........................................................................................................................................................419

Extended Address Space........................................................................................................................................420

Stateless Autoconguration................................................................................................................................... 420

IPv6 Header Fields......................................................................................................................................................... 421

Version (4 bits)..........................................................................................................................................................421

Trac Class (8 bits)................................................................................................................................................. 421

Flow Label (20 bits)..................................................................................................................................................421

Payload Length (16 bits)..........................................................................................................................................421

Next Header (8 bits)............................................................................................................................................... 422

Hop Limit (8 bits).....................................................................................................................................................422

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