Patent ID: 7453850
Filing Date: 2008-11-18
Classification: H04L,H04W

Abstract:
1. In a packet radio communication system having a mobile network comprising a home network having a home agent associated therewith and a foreign network having a foreign agent associated therewith, and a mobile node selectably identified by a nonuniversal identifier address, an apparatus for facilitating bi-directional routing of data with the mobile node when the mobile node is positioned at the foreign network, said apparatus comprising: a determiner located at the foreign network, said determiner for determining whether the mobile node is identified by the nonuniversal identifier address and for determining whether the nonuniversal identifier address of the mobile node conflicts with the nonuniversal identifier address of other node(s) associated with the foreign network; a message generator operably responsive to determinations made by said determiner that the mobile node is identified by the nonuniversal identifier address and the address conflict with the nonuniversal identifier address of other node(s) associated with the foreign network, said message generator for generating a message for communication with the mobile node, and wherein the message generator generates a message for alerting the mobile node to obtain a unique private address, the unique private address used to form a first data tunnel between the mobile node and the foreign agent; and wherein the foreign network of the packet radio communication system comprises a DHCP (Dynamic Host Configuration Protocol) device and wherein the message generated by said message generator causes the mobile node to obtain values of the unique private address from the DHCP device.