Information
Define a default domain name that the Cisco IOS software uses to complete unqualified hostnames
Rationale:
The domain name is a prerequisite for setting up SSH.
Solution
Configure an appropriate domain name for the router.
hostname (config)#ip domain name {domain-name}
Impact:
Organizations should plan the enterprise network and identify an appropriate domain name for the router.
Default Value:
No domain is set.
References:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipaddr/command/ipaddr-i3.html#GUID-A706D62B-9170-45CE-A2C2-7B2052BE2CAB