[Gudy]

Ситуация такая:
Activity Status
Checking the tunnel status... Up
Encapsulation :0
Decapsulation :14556
Send Error :0
Received Error :0



Troubleshooting Results
Failure Reason(s) Recommended Action(s)
A ping with data size of this VPN interface MTU size and 'Do not Fragment' bit set to the other end VPN device is failing. This may happen if there is a lesser MTU network which drops the 'Do not fragment' packets. 1)Contact your ISP/Administrator to resolve this issue. 2)Issue the command 'crypto ipsec df-bit clear' under the VPN interface to avoid packets drop due to fragmentation.

Это пишет Циска

Пинги между сетями не ходят, с ИСЫ пишет "соглосование используемого уровня безопастности ИП".
При это туннель в мониторинге исы работает.