Users Guide

Auto-Negotiation on Ethernet Interfaces....................................................................................................................... 394
Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................................................... 394
Set Auto-Negotiation Options..................................................................................................................................396
View Advanced Interface Information.............................................................................................................................397
Conguring the Interface Sampling Size...................................................................................................................397
Dynamic Counters..........................................................................................................................................................398
Clearing Interface Counters..................................................................................................................................... 399
23 Internet Protocol Security (IPSec)............................................................................400
Conguring IPSec ......................................................................................................................................................... 400
24 IPv4 Routing............................................................................................................. 402
IP Addresses.................................................................................................................................................................. 402
Implementation Information......................................................................................................................................402
Conguration Tasks for IP Addresses............................................................................................................................. 402
Assigning IP Addresses to an Interface...........................................................................................................................403
Conguring Static Routes.............................................................................................................................................. 403
Congure Static Routes for the Management Interface.................................................................................................404
IPv4 Path MTU Discovery Overview..............................................................................................................................405
Using the Congured Source IP Address in ICMP Messages......................................................................................... 405
Conguring the ICMP Source Interface................................................................................................................... 405
Conguring the Duration to Establish a TCP Connection............................................................................................... 406
Enabling Directed Broadcast.......................................................................................................................................... 406
Resolution of Host Names............................................................................................................................................. 406
Enabling Dynamic Resolution of Host Names................................................................................................................. 407
Specifying the Local System Domain and a List of Domains...........................................................................................407
Conguring DNS with Traceroute.................................................................................................................................. 408
ARP............................................................................................................................................................................... 408
Conguration Tasks for ARP.......................................................................................................................................... 409
Conguring Static ARP Entries...................................................................................................................................... 409
Enabling Proxy ARP....................................................................................................................................................... 409
Clearing ARP Cache....................................................................................................................................................... 410
ARP Learning via Gratuitous ARP................................................................................................................................... 410
Enabling ARP Learning via Gratuitous ARP.....................................................................................................................410
ARP Learning via ARP Request.......................................................................................................................................410
Conguring ARP Retries..................................................................................................................................................411
ICMP.............................................................................................................................................................................. 412
Conguration Tasks for ICMP......................................................................................................................................... 412
Enabling ICMP Unreachable Messages...........................................................................................................................412
UDP Helper.....................................................................................................................................................................412
Congure UDP Helper.............................................................................................................................................. 412
Important Points to Remember.................................................................................................................................412
Enabling UDP Helper.......................................................................................................................................................413
Congurations Using UDP Helper................................................................................................................................... 413
UDP Helper with Broadcast-All Addresses......................................................................................................................413
UDP Helper with Subnet Broadcast Addresses...............................................................................................................414
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