Reference Guide

Enhanced Validation of Interface Ranges....................................................................................... 449
Compressing Configuration Files.................................................................................................... 449
23 Internet Protocol Security (IPSec)................................................................. 453
Configuring IPSec ............................................................................................................................454
24 IPv4 Routing........................................................................................................455
IP Addresses...................................................................................................................................... 455
Implementation Information...................................................................................................... 455
Configuration Tasks for IP Addresses.............................................................................................. 455
Assigning IP Addresses to an Interface............................................................................................ 456
Configuring Static Routes.................................................................................................................457
Configure Static Routes for the Management Interface.................................................................458
IPv4 Path MTU Discovery Overview.................................................................................................459
Using the Configured Source IP Address in ICMP Messages......................................................... 460
Configuring the ICMP Source Interface.................................................................................... 460
Configuring the Duration to Establish a TCP Connection............................................................. 460
Enabling Directed Broadcast............................................................................................................ 461
Resolution of Host Names................................................................................................................461
Enabling Dynamic Resolution of Host Names.................................................................................461
Specifying the Local System Domain and a List of Domains..........................................................462
Configuring DNS with Traceroute................................................................................................... 463
ARP.................................................................................................................................................... 463
Configuration Tasks for ARP............................................................................................................ 464
Configuring Static ARP Entries.........................................................................................................464
Enabling Proxy ARP...........................................................................................................................465
Clearing ARP Cache..........................................................................................................................465
ARP Learning via Gratuitous ARP..................................................................................................... 465
Enabling ARP Learning via Gratuitous ARP......................................................................................466
ARP Learning via ARP Request.........................................................................................................466
Configuring ARP Retries................................................................................................................... 467
ICMP..................................................................................................................................................468
Configuration Tasks for ICMP..........................................................................................................468
Enabling ICMP Unreachable Messages........................................................................................... 468
UDP Helper....................................................................................................................................... 468
Configure UDP Helper................................................................................................................468
Important Points to Remember................................................................................................. 469
Enabling UDP Helper........................................................................................................................469
Configuring a Broadcast Address.................................................................................................... 469
Configurations Using UDP Helper................................................................................................... 470
UDP Helper with Broadcast-All Addresses...................................................................................... 470
UDP Helper with Subnet Broadcast Addresses................................................................................471