natpmpc(1) General Commands Manual natpmpc(1)NAMEnatpmpc - NAT-PMP library test client and mapping setter.SYNOPSISDisplay the public IP address: natpmpc Add a port mapping: natpmpc -a <public port> <private port> <protocol> [lifetime]DESCRIPTIONIn 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)