METHOD OF COMMUNICATION BETWEEN IPV6 MOBILE NODE AND IPV4-BASED NODE IN MIPV6

摘要

A communication method between an IPv6(Internet Protocol version 6) MN(Mobile Node) and an IPv4-based node in a mobile IPv6 environment using a DSTM(Dual Stack Transition Mechanism) is provided to effectively establish an IPv6-based next-generation network by automatically providing mobility between existing networks. When an IPv6 MN moves to an external network, it generates a CoA(Care of Address)(S31). The MN notifies an HA(Home Agent) about the generated CoA and requests binding updating(S32). The HA intercepts an IPv4-in-IPv6 packet and transmits it to the MN(S33). The IPv6 MN transmits a binding update message to a DSTM TEP(Tunneling End Point)(S34). The DSTM TEP searches an IPv6 source(HoA) field of its address mapping table and updates an IPv6 source value(S35). When an IPv4 PACKET is received from an IPv4 CN(Counter Node), the DSTM TEP searches the IPv4 source field of the address mapping table, and if the value of the IPv6 source field has been designated, the DSTM TEP performs IPv4-in-IPv6 capsulation on the packet by using the address as a destination and directly transmits it to the MN located in an MIPv6(Mobile IPv6)(S36).