NAT-T VPN IPSEC

[Rafael Santos 92]

Hello,

I need some help.

My scenario:
Main Office:
DMZ on ISP Router: 192.168.160.1
Firewall configured with 192.168.160.2
LAN: 192.168.0.0

IP Sec VPN configured on both sides. Thing is that I can just ping devices but no response on ports 3390, 445, 80, etc.

What should I do to fix connection between both LANs via IPSEC?

Is there any NAT configuration I should do?

The connection works when I use a PPPoE interface.