@johnpoz My configuration in: System / Advanced / Firewall & NAT / Network Address Translation / NAT Reflection mode for port forwards is set to "NAT + Proxy" and when I set to "Pure NAT", I can list the ftp content from LAN So, it seems a solution, as it works. But as I have set Squid Proxy, perhaps it's not a good idea to set "Pure NAT"? Otherwise, can I create a rule which simulate the "Pure NAT" setup with "NAT + Proxy"?