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A Multihoming Support Scheme with Localized Shim Protocol in Proxy Mobile IPv6

This paper proposes an enhanced multihoming support scheme based on combining ideas from both the Shim and Proxy Mobile IPv6 (PMIPv6) protocols. The proposed scheme not only resolves the multihoming support problems with the current PMIPv6, but also provides mobility support to the Shim protocol. In the proposed scheme, the Shim protocol is locally used between a multihomed Mobile Node (MN) and the Local Mobility Anchor (LMA) in the PMIPv6 domain. A flow distribution scheme with the Shim locator preferences is proposed to provide flexible multihoming. Simulation results show that the PMIPv6 combined with the localized Shim protocol can support both mobility and multihoming efficiently.