natpmpc(1)

NAME
natpmpc - NAT-PMP library test client and mapping setter.

SYNOPSIS
Display the public IP address:
natpmpc Add a port mapping:
natpmpc -a <public port> <private port> <protocol> [lifetime]

DESCRIPTION
In order to remove a mapping, set it with a lifetime of 0 seconds. To remove all mappings for your machine, use 0 as private port and lifetime.