This is the command natpmpc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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.
natpmpc(1)
Use natpmpc online using onworks.net services