Users Guide

View Advanced Interface Information............................................................................................................................308
Configuring the Interface Sampling Size..................................................................................................................308
Dynamic Counters.............................................................................................................................................................309
Clearing Interface Counters........................................................................................................................................310
Chapter 21: Internet Protocol Security (IPSec)...............................................................................311
Configuring IPSec ..............................................................................................................................................................311
Chapter 22: IPv4 Routing............................................................................................................. 313
IP Addresses....................................................................................................................................................................... 314
Configuration Tasks for IP Addresses............................................................................................................................. 314
Assigning IP Addresses to an Interface...........................................................................................................................314
Configuring Static Routes.................................................................................................................................................315
Configure Static Routes for the Management Interface..............................................................................................316
IPv4 Path MTU Discovery Overview...............................................................................................................................316
Using the Configured Source IP Address in ICMP Messages......................................................................................317
Configuring the Duration to Establish a TCP Connection.............................................................................................317
Enabling Directed Broadcast............................................................................................................................................ 317
Resolution of Host Names................................................................................................................................................ 318
Enabling Dynamic Resolution of Host Names................................................................................................................ 318
Specifying the Local System Domain and a List of Domains........................................................................................318
Configuring DNS with Traceroute................................................................................................................................... 319
ARP......................................................................................................................................................................................319
Configuration Tasks for ARP........................................................................................................................................... 320
Configuring Static ARP Entries....................................................................................................................................... 320
Enabling Proxy ARP.......................................................................................................................................................... 320
Clearing ARP Cache..........................................................................................................................................................320
ARP Learning via Gratuitous ARP....................................................................................................................................321
Enabling ARP Learning via Gratuitous ARP....................................................................................................................321
ARP Learning via ARP Request........................................................................................................................................321
Configuring ARP Retries...................................................................................................................................................322
ICMP................................................................................................................................................................................... 322
Configuration Tasks for ICMP......................................................................................................................................... 322
Enabling ICMP Unreachable Messages..........................................................................................................................323
UDP Helper........................................................................................................................................................................ 323
Enabling UDP Helper.........................................................................................................................................................323
Configuring a Broadcast Address....................................................................................................................................324
Configurations Using UDP Helper...................................................................................................................................324
UDP Helper with Broadcast-All Addresses.................................................................................................................... 324
UDP Helper with Subnet Broadcast Addresses............................................................................................................325
UDP Helper with Configured Broadcast Addresses..................................................................................................... 325
UDP Helper with No Configured Broadcast Addresses...............................................................................................326
Troubleshooting UDP Helper........................................................................................................................................... 326
Chapter 23: IPv6 Routing.............................................................................................................327
Protocol Overview.............................................................................................................................................................327
Extended Address Space............................................................................................................................................327
Stateless Autoconfiguration.......................................................................................................................................327
IPv6 Headers................................................................................................................................................................328
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