Hi Steve, draft-ietf-ipsec-ciph-aes-ccm has been updated to address the IKEv2 specificity problem which Tero raised, and a reference to [CCM] for test vectors. In addition, as 2401bis and ESPbis have been pushed to publication requested, it seems appropriate to put this on your queue for review and for IETF last call. Many thanks!! - Ted