Useful links
============

Port forwarding protocol:
 http://en.wikipedia.org/wiki/Internet_Gateway_Device

Alternatives:
 http://en.wikipedia.org/wiki/NAT_Port_Mapping_Protocol (Apple products)

Implementations:
 http://miniupnp.free.fr/
 http://search.cpan.org/~skonno/Net-UPnP-1.2.1/
 http://miniupnp.free.fr/libnatpmp.html
 libktupnp from http://ktorrent.org/
