Why does it happen that the internal server IP address?

[wuwzy]

Why does it happen that the internal server IP address can be scanned from the outside? Is it something I didn't close? Please give pointers.

;D

[wincent]

You should try to check your NAT rules if there is a One-to-One or Port Forwarding rule target to 192.168.1.40

By default, the WAN port is block all inbound traffic.