Users Guide

Setting the Speed and Duplex Mode of Ethernet Interfaces...................................................................................373
Adjusting the Keepalive Timer......................................................................................................................................375
View Advanced Interface Information......................................................................................................................... 375
Conguring the Interface Sampling Size...............................................................................................................376
Dynamic Counters..........................................................................................................................................................377
Clearing Interface Counters....................................................................................................................................377
Enhanced Validation of Interface Ranges................................................................................................................... 378
Compressing Conguration Files..................................................................................................................................378
20 IPv4 Routing.............................................................................................................................................381
IP Addresses...................................................................................................................................................................382
Implementation Information....................................................................................................................................382
Conguration Tasks for IP Addresses..........................................................................................................................382
Assigning IP Addresses to an Interface.......................................................................................................................382
Conguring Static Routes.............................................................................................................................................383
Congure Static Routes for the Management Interface.......................................................................................... 384
Using the Congured Source IP Address in ICMP Messages..................................................................................385
Conguring the ICMP Source Interface............................................................................................................... 385
Conguring the Duration to Establish a TCP Connection........................................................................................ 385
Enabling Directed Broadcast........................................................................................................................................ 386
Resolution of Host Names............................................................................................................................................386
Enabling Dynamic Resolution of Host Names............................................................................................................386
Specifying the Local System Domain and a List of Domains....................................................................................387
Conguring DNS with Traceroute................................................................................................................................387
ARP................................................................................................................................................................................. 388
Conguration Tasks for ARP........................................................................................................................................ 388
Conguring Static ARP Entries....................................................................................................................................388
Enabling Proxy ARP.......................................................................................................................................................389
Clearing ARP Cache......................................................................................................................................................389
ARP Learning via Gratuitous ARP............................................................................................................................... 389
Enabling ARP Learning via Gratuitous ARP................................................................................................................389
ARP Learning via ARP Request................................................................................................................................... 390
Conguring ARP Retries...............................................................................................................................................390
ICMP................................................................................................................................................................................ 391
Conguration Tasks for ICMP.......................................................................................................................................391
Enabling ICMP Unreachable Messages....................................................................................................................... 391
UDP Helper.....................................................................................................................................................................392
Congure UDP Helper.............................................................................................................................................392
Important Points to Remember............................................................................................................................. 392
Enabling UDP Helper.....................................................................................................................................................392
Conguring a Broadcast Address................................................................................................................................ 392
Congurations Using UDP Helper............................................................................................................................... 393
UDP Helper with Broadcast-All Addresses.................................................................................................................393
UDP Helper with Subnet Broadcast Addresses.........................................................................................................394
UDP Helper with Congured Broadcast Addresses..................................................................................................394
UDP Helper with No Congured Broadcast Addresses............................................................................................395
Troubleshooting UDP Helper........................................................................................................................................395
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