IKE Session Agent counters are available from apSecuritySAIKEStats. The OID prefix is 1.3.6.1.4.1.9148.3.9.5.1which is found in the ap-security.mib file.

The apSecuritySAIKEStats contains numerous session agent statistics concerning IKE traffic and corresponds to the show sa stats ike command and sa-ike HDR group.