Cisco Cisco IOS Software Release 12.4(4)T

This section provides the following configuration examples:

The following example shows how to specify a VPN named vpn1 with the IP addresses of 172.16.1.111 
and 172.16.1.2 as the name servers: 

ip name-server vrf vpn1 172.16.1.111 172.16.1.2 

The following example shows how to add several domain names to a list in vpn1 and vpn2. The domain 
name is only used for name queries in the specified VRF.

ip domain list vrf vpn1 company.com

ip domain list vrf vpn2 school.edu

Router> enable

Enables privileged EXEC mode. 

Enter your password if prompted.

 [vrf vrf-name] 

{all | hostname} 

[summary]

Router# show hosts vrf vpn2

Displays the default domain name, the style of name 
lookup service, a list of name server hosts, the cached 
list of hostnames and addresses, and the cached list of 
hostnames and addresses specific to a particular Virtual 
Private Network (VPN).

The vrf keyword and vrf-name argument only display 
the entries if a VRF name has been configured.

If you enter the show hosts command without 
specifying any VRF, only the entries in the global name 
cache will display.

[vrf vrf-name] 

{all | hostname}

Router# clear host vrf vpn2

(Optional) Deletes entries from the hostname-to-address 
global address cache or VRF name cache.