3.1.7.1 IP Address Deletion
The Authenticated Internet Protocol reacts to IP address Plug and Play notifications. If an IP address on the system is deleted, the Authenticated Internet Protocol MUST delete all corresponding SAs and send a Notify payload of Notify type NOTIFY_STATUS (2.2.3.5) to the peer for each deleted SA. This packet MUST be constructed as follows:
HDR: The ISAKMP header MUST be identical to the IKE Informational packet, as specified in [RFC2409] section 5.7, and the exchange type MUST be 246 (NOTIFY exchange type).
Notify (Status): This notify MUST have the RELIABLE_NOTIFY_FLAG, as specified in section 2.2.3.5, set to TRUE.