Hello,
I have three FTD 6.6.1 managed by FMC 6.6.1, all three are the mesh topology.
I got the following error message:
Tunnel Manager failed to dispatch a KEY_ACQUIRE message.
Probable mis-configuration of the crypto map or tunnel-group. Map Tag = unknown. Map Sequence Number = 0.
Tunnel Manager has failed to establish an L2L SA. All configured IKE versions failed to establish the tunnel. Map Tag= CSM_outside_map. Map Sequence Number = 2.
The tunnel goes down then nothing works properly in the network.
I tried all IKE2 version nothing works.
Thank you.