中心ASA5510固定公网IP 分支ASA5505 PPPOE,做Site to Site IPSec 中心已连接其它多个站点目前正常工作,有一个分支 ASA5505 连中心 VPN Tunnel不通,
ciscoasa5505# show crypto isakmp sa
Active SA: 1
Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
Total IKE SA: 1
1 IKE Peer: XXX.XXX.208.34
Type : user Role : initiator
Rekey : no State : MM_WAIT_MSG2
ciscoasa5505#
Debug 提示
Feb 24 18:00:54 [IKEv1]: IP = XXX.XXX.208.34, Information Exchange processing failed
可能是什么问题,应该怎么排查,谢谢!