LMA/HA Discovery Mechanism on the interaction between MIPv6 and PMIPv6

When PMIPv6 and MIPv6 protocols are deployed in a network where multiple HAs collocated with LMAs are deployed and a mobile node moves from a MIPv6 network to the PMIPv6 home domain, the MAG must select the particular LMA collocated with the MN´s HA in the previous MIPv6 domain, otherwise packets addressed to the MN will be dropped, vice versa. Two interaction mechanisms are proposed for solving the issues existing between a MIPv6 domain and a PMIPv6 domain. The MN´s HA registers its address at the MN´s AAA server after the MIPv6 registration over, and then the MN´s MAG retrieves the HA address during the authentication phase and initiates the PMIPv6 registration procedure when the MN enters a PMIPv6 domain. The process procedure is identical to the former solution when the MN roams to a MIPv6 domain from a PMIPv6 domain. The sole difference is the LMA address instead of the HA address. The proposed schemes improve the mobility management performance of the interaction between a MIPv6 domain and a PMIPv6 domain and enhance the capability of network deployment.