Users Guide

Configure Static Routes for the Management Interface................................................523
IPv4 Path MTU Discovery Overview...................................................................................523
Using the Configured Source IP Address in ICMP Messages....................................... 524
Configuring the ICMP Source Interface......................................................................524
Configuring the Duration to Establish a TCP Connection............................................ 525
Enabling Directed Broadcast............................................................................................... 525
Resolution of Host Names................................................................................................... 526
Enabling Dynamic Resolution of Host Names.................................................................526
Specifying the Local System Domain and a List of Domains........................................527
Configuring DNS with Traceroute...................................................................................... 527
ARP............................................................................................................................................528
Configuration Tasks for ARP................................................................................................528
Configuring Static ARP Entries............................................................................................ 529
Enabling Proxy ARP................................................................................................................529
Clearing ARP Cache.............................................................................................................. 530
ARP Learning via Gratuitous ARP........................................................................................530
Enabling ARP Learning via Gratuitous ARP....................................................................... 531
ARP Learning via ARP Request.............................................................................................531
Configuring ARP Retries....................................................................................................... 532
ICMP..........................................................................................................................................533
Configuration Tasks for ICMP............................................................................................. 533
Enabling ICMP Unreachable Messages............................................................................. 533
UDP Helper..............................................................................................................................534
Configure UDP Helper.................................................................................................... 534
Important Points to Remember.................................................................................... 534
Enabling UDP Helper.............................................................................................................534
Configuring a Broadcast Address....................................................................................... 535
Configurations Using UDP Helper......................................................................................535
UDP Helper with Broadcast-All Addresses.......................................................................536
UDP Helper with Subnet Broadcast Addresses................................................................537
UDP Helper with Configured Broadcast Addresses........................................................537
UDP Helper with No Configured Broadcast Addresses.................................................538
Troubleshooting UDP Helper..............................................................................................538
28 IPv6 Routing....................................................................................................................... 540
Protocol Overview.................................................................................................................540
Extended Address Space................................................................................................ 540
Stateless Autoconfiguration...........................................................................................540
IPv6 Headers......................................................................................................................541
IPv6 Header Fields............................................................................................................542
Extension Header Fields..................................................................................................544
Addressing......................................................................................................................... 545
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