Patent ID: 8842603
Filing Date: 2014-09-23
Classification: H04L,H04W

Abstract:
1. In a mobile node, a method of determining whether a network associated with a foreign agent is multiple IP-address interface compatible, the method comprising the steps of: receiving an agent advertisement from the foreign agent, the agent advertisement including information provided as one or more flag bits of one or more fields of the agent advertisement, wherein one of the one or more flag bits is indicative of the network being multiple IP-address interface compatible, with one IP-address being acquired from and anchored in a home network and another IP-address being acquired from and anchored in the network of the foreign agent; and reading the agent advertisement to determine whether the one of the one or more flag bits indicates a dual anchoring multiple IP-address interface compatibility; wherein when the one of the one or more flag bits indicates the dual anchoring multiple IP-address interface compatibility, configuring the mobile node for communication with the network; wherein the step of configuring the mobile node for communication with the network comprises the steps of: examining a primary mobile node IP interface to determine whether a primary IP address has been assigned; and where the primary IP address has not been assigned, requesting the primary IP address from the foreign agent.