npm

libnatpmp

Library for NAT port mapping using the UPnP Internet Gateway Device protocol.

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About

NAT port mapping protocol library

Examples

map a local port to external network for incoming connections$ libnatpmp is a C library - use it in your application code or via language bindings

automatically open ports on home router without manual configuration$ include libnatpmp in your C/C++ project and call natpmp_init() to discover gateway

forward ports programmatically from inside an application$ link against libnatpmp and use sendnewportmappingrequest() to request port mappings

close port mappings when application stops$ call sendnewportmappingrequest() with lifetime 0 to remove port mapping rules

detect NAT device and get external IP address$ use natpmp_sendpublicaddressrequest() to query gateway for public facing IP