A preferred embodiment of the present invention includes a method and apparatus for routing an IP packets in a network of client systems. The router forwards IP packets between the client systems and the server systems. More specifically, the router can be pre-configured to include one or more "routes."...http://www.google.co.uk/patents/US5922049?utm_source=gb-gplus-sharePatent US5922049 - Method for using DHCP and marking to override learned IP addesseses in a network
