A METHOD OF ROUTE OPTIMIZATION BETWEEN MN AND ROAMING HA IN MIPV6 NETWORK

摘要

The current invention describes a method for optimizing routing of packets between a mobile node (MN) and a roaming home agent (HA) in a Mobile IPv6 network.The techniques take advantage of the Mobile IPv6 support at the MN and HA for avoiding the extra tunneling and extra path traversal for the packets between MN and CN. When HA receives a tunneled packet from HAJHA sent from MN to CN, it verifies whether the present address of communication is the Care-of-Address (CoA) of MN from the Binding Cache List. HA identifies the home address of the MN from the Binding Cache List and then initiates a Return Routability (RR) Procedure. After successful RR Procedure, the packets from MN to CN traverse from MN to HA and then to HA_HA and finally to CN, while the packets from CN to MN traverse from CN to HA_HA and then to HA and finally to MN.