This code is in maintenance mode only. It has been superceed by nat_upnp which is easier to use in your Erlang application:
https://github.com/benoitc/nat_upnp
Application that provides a way to map a local port to the external using UPnP IGD.
Code extracted from etorrent .
Example of usage:
1> ssl:start().
2> application:start(hackney).
3> application:start(ranch).
4> application:start(cowboy).
5> lager:start().
6> application:start(upnp).
7> upnp:start(test, [{ip, "0.0.0.0"}, {maps, [{"example.com", tcp, 8000}]}]).
This will map the port 8000 on the external IP to your application