Reference Guide

IPv4 Routing | 695
Usage
Information
You can only configure one domain name with the ip domain-name command. To
configure more than one domain name, configure the ip domain-list command up to 6
times.
Use the following steps to enable dynamic resolution of hosts:
• specify a domain name server with the ip name-server command.
• enable DNS with the ip domain-lookup command.
To view current bindings, use the show hosts command.
Related
Commands
ip fib download-igp-only
e
Configure the E-Series to download only IGP routes (for example, OSPF) on to line
cards. When the command is configured or removed, it clears the routing table
(similar to clear ip route command) and only IGP routes populate the table.
Syntax
ip fib download-igp-only [small-fib]
To return to default setting, use the
no ip fib download-igp-only [small-fib] command.
Parameters
Defaults
Disabled
Command Modes
CONFIGURATION
Command
History
ip helper-address
c e s
Specify the address of a DHCP server so that DHCP broadcast messages can be
forwarded when the DHCP server is not on the same subnet as the client.
Syntax
ip helper-address ip-address | default-vrf
To remove a DHCP server address, enter no ip helper-address.
ip domain-list Configure additional names.
small-fib
(OPTIONAL) Enter the keyword small-fib to download a smaller FIB table. This
option is useful on line cards with a limited FIB size.
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Added support for S-Series
Version 7.5.1.0 Added support for C-Series
pre-Version 6.2.1.1 Introduced on E-Series