natpmpc(1) General Commands Manual 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 [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. natpmpc(1)