Blog Posts in September 2006
Use your Cisco router as a primary DNS server
In IOS release 12.3, most Cisco routers can act as primary DNS servers (formerly, this functionality was only available as part of DistributedDirector product), alleviating the need for a host-based DNS server in your perimeter network. To configure a router to act as primary DNS server for a zone, use the ip dns primary command, for example:
ip dns server
ip dns primary website.com soa ns.website.com
admin@website.com 86400 3600 1209600 86400