Reference Guide

IPv4 Routing | 645
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 z
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 | ipv6-address | default-vrf
To remove a DHCP server address, enter no ip helper-address.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
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 8.3.11.1 Introduced on the Z9000.
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