A Traffic Analysis of Authentication Methods for Proxy Mobile IPv6

Proxy mobile IPv6 has been proposed to enable a network-based mobility support which does not require a mobile host to be involved in mobility signaling. In the Proxy mobile IPv6 specification, an authentication procedure is required as an initial part of registration for network access. However, the current specification does not provide the authentication procedure explicitly. Thus, in this paper, we propose authentication methods classified based on security level. Due to the limited resource of wireless networks, we analyze authentication traffic in terms of cost. The presented performance evaluation results demonstrate the impacts of each authentication method.