Inter subnet roaming system and method

A computer readable medium for storing computer readable code including instruction for directing a processor in the performance of a communication network roaming authentication process comprising:

• directing operations associated with communication of client authentication information of a mobile device to and from one or more wireless domain service devices, wherein the wireless domain service devices are configured to provide network access to mobile devices located in different geographical areas, and wherein the client authentication information is configured to indicate that at least one of the wireless domain service devices previously authenticated the mobile device for communication over a network;
• receiving a request for the mobile device to communicate over a network through the first wireless domain service device;
• and
• authenticating the mobile device according to the client authentication information received from at least one of the wireless domain service devices utilizing a reduced authentication process responsive to the request, wherein the mobile device, once authenticated, is capable of communicating over the network through the first wireless domain service device.

A system comprising:

• means for receiving, with a first wireless domain service device, authentication information of a mobile device from a second wireless domain service device, wherein the first wireless domain service device is configured to provide network access to mobile devices located in a first geographical area, wherein the second wireless domain service device is configured to provide network access to mobile devices located in a second geographical area, and wherein the authentication information is configured to indicate that the second wireless domain service device previously authenticated the mobile device for communication over a network;
• means for receiving a request for the mobile device to communicate over a network through the first wireless domain service device;
• and
• means for authenticating the mobile device according to the authentication information received from the second wireless domain service device utilizing a reduced authentication process responsive to the request, wherein the mobile device, once authenticated by the first wireless domain service device, is capable of communicating over the network through the first wireless domain service device.