A Route Optimization Mechanism Using an Extension Header in the IPv6 Multihoming Environment

A multihomed enterprise or AS (Autonomous System) improves reliability and performance by acquiring its Internet connectivity from more than one ISP (Internet Service Provider). When connectivity through one of the ISPs fails, its connectivity to the Internet can be continued by using tunneling mechanism through Non-direct EBGP (Exterior Border Gateway Protocol). However, this mechanism causes the problem that makes the communication route non-optimal. In this paper, we propose a route optimization mechanism by using an extension header in the IPv6 mutihoming environment.