A system and method are disclosed for providing mobility management among mobile nodes in a communication network. Emulation can be provided to allow a mobile node that uses mobile IP (MIP) to access and use a communication network that is based on proxy mobile IP (PMIP). A gateway can be used to terminate the MIP based protocol access from the mobile node and communicate with the PMIP based core network. Emulation can be provided on a gateway to provide communication from a internet protocol version 4 (IPv4) mobile node and a core network running internet protocol version 6 (IPv6). This allows the network operator to provide access to the deployed base of MIP or IPv4 mobile nodes.