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Simplifications (cont) Client side (roaming laptop side) Allow NAT-T only when not using multihoming Only allow one interface at time if NAT-T is used (no multiple NAT-T interfaces or non NAT-T interface at same time) (i.e. ignore other interfaces if the current one uses NAT). Recovery If the initiator is behind NAT it takes care of recovery Initiator takes all care of recovery always Note Initiator == Client side (roaming laptop) in most of the cases |