Path Authorization Technique in Diameter Base Protocol

Diameter base protocol is intended to provide an AAA framework for applications such as IP mobility. Currently Diameter base protocol is standardized to RFC 3588, but there are some problems. One of them, path authorization is already argued at IETF WG Mailing List. According to RFC 3588, path authorization function causes inefficient data traffic and conflicts with RFC 3588 itself. In this paper, we analysis these problems about path authorization function and propose more improved solution.