A method and apparatus are provided for dynamically configuring authorized clients with the address of a protected host and the key and address of an intermediate device (e.g., encrypting firewall, encrypting router, secure gateway) which is protecting a number of hosts on a private network located topologically...http://www.google.de/patents/US6119234?utm_source=gb-gplus-sharePatent US6119234 - Method and apparatus for client-host communication over a computer network
