The reason the IPsec Phase-2 Tunnel was terminated.
Possible reasons include:
1 = other
2 = normal termination
3 = operator request
4 = peer delete request was received
5 = contact with peer was lost
6 = applicationInitiated (eg: L2TP requesting the
termination)
7 = failure of extended authentication
8 = local failure occurred
9 = operator initiated check point request