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“MOBIKE standard” Starting point: A and B use IKEv2 + tunnel mode IPsec Now A and B agree to use MOBIKE Without having to agree on anything else A can move to a new address without creating a new IKE SA (“basic mobility case”) If A moves to a new address and B has several addresses (and we don’t have full connectivity), A can select one that works If DPD fails, they can figure out some path that works and move the traffic there |