A METHOD OF ROUTE OPTIMIZATION WITH DUAL MIPV6 NODE IN IPV4-ONLY NETWORK

摘要

This invention relatedto achieving Route Optimization when dual capable MIPv6Mobile node is connected with V4 only network. Route optimization allows packetsTo tranverse a shorter route than the default one thought the home agent using bidirectional tunneling thus leading to better bandwidth utilization. This invention explains a method of route optimization with dual MIPV6 node inIPV4-only network comprising the steps of: updating HA with V4 address and deregistering BU with CN via HA; MN informing its IPV4 addr to CN and getting CN’s IPV4 address in replyChecking reachability of CN in its V4 address using v6-in-v4 tunnel; and sending and receiving Ipv6 data packets to/from CN using v4 tunnel.