SHA1 (nat_detection_source, sizeof (nat_detection_source),
nat_detection_sha1);
ikev2_payload_add_notify (chain, IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP,
nat_detection_sha1);
tmpip = clib_host_to_net_u32 (p->responder.ip4.as_u32);
SHA1 (nat_detection_source, sizeof (nat_detection_source),
nat_detection_sha1);
ikev2_payload_add_notify (chain, IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP,
nat_detection_sha1);
tmpip = clib_host_to_net_u32 (p->responder.ip4.as_u32);