python-firewall-mapper

This is a very simple script to help you map tcp/udp port rules, to try and find a valid communications channel to the outside world when testing a local network.

Usage:

On the external server:

./python-firewall-mapper [-i INTERFACE | -l ADDRESS]

In the local network:

for PORT in seq 1 65535; do echo test | nc $REMOTE_IP $PORT; done

(or any other bash trickery you can think of)