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Options for SA establishment AAA based access authentication? Used in 3GPP2 A way to derive keys which can be used later for Mobile IPv6 BU SEND-based Public hotspots? IKE? Issue: Certificate provisioning between MN and an arbitrary visited network router EAP-based keying? EAP-over-any-access-network? Keep Type-specific authentication mechanism open Note: specifying a single mechanism appears not worthwhile. Instead, a framework may be the best option available |