IPv4 (Internet Protocol version 4)-supporting hierarchical mobile IPv6 method

• Main Authors: MA ZHENGMING, HU HAIFENG, WANG LIN, WANG BOTAO, ZHANG FEI, ZHANG XUN, LIANG YANYING, WANG KE, LIANG YUQI
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention relates to a method for supporting IPv4 (Internet Protocol version 4) in hierarchical mobile IPv6 so as to realize communication with IPv4 nodes. The basic concept of the method is that the intercommunication between mobile nodes in the hierarchical mobile IPv6 and IPv4 communication nodes is realized by means of setting a dual-stack home network in hierarchical mobile IPv6 to make a home agent support dual-stack functions of dual stack and mobile node expansion, expanding relevant update signaling message and applying a reverse tunneling communication mode. According to the invention, the application of the hierarchical mobile IPv6 is ensured not to be limited on pure IPv6, the support to IPv4 by the hierarchical mobile Ipv6 is realized, not only is the problem of application limit of the hierarchical mobile IPv6 technology in a transition period from IPv4 to IPv6 solved, but also the advantages of reducing signaling expense, lightening network burden, reducing packet loss and time delay and th