This paper proposes efficient approach for adaptation of Mobile IPv6 over IEEE 802.11 Wireless LAN using Diameter in roaming environments. The authors assume that IEEE 802.1x authentication is used to authenticate the user in Wireless LAN and Diameter is used to carry IEEE 802.1x authentication messages between foreign AAA and home AAA. In this paper, Diameter is responsible for supporting IP mobility features such as home agent assignment and key distribution which is needed to securely send BU message to its home agent. Finally, the authors design authentication mechanism that mobile station can acquire IPv6 mobility support as well as network access to Wireless LAN in roaming environments.
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