IPSec established but no connection from the LAN
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I have an IPSec tunnel with a customer where they don't accept the use of private IP in the encrypted domain, so I'm using the WAN IP as the encrypted domain. From the customer side, I can see the traffic in the tunnel and the port forwarding/NAT is working well, but when the communication returns from the local server (from the LAN), it goes to the internet and not to the tunnel.
When doing a ping from the PFSense console, the traffic goes to the tunnel, but when coming from LAN it goes to the WAN.
Any ideas to solve this?