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go-nat-pmp
==========
A Go language client for the NAT-PMP internet protocol for port mapping and discovering the external
IP address of a firewall.
NAT-PMP is supported by Apple brand routers and open source routers like Tomato and DD-WRT.
See http://tools.ietf.org/html/draft-cheshire-nat-pmp-03
Get the package
---------------
go get -u github.com/jackpal/go-nat-pmp
Usage
-----
import natpmp "github.com/jackpal/go-nat-pmp"
client := natpmp.NewClient(gatewayIP)
response, err := client.GetExternalAddress()
if err != nil {
return
}
print("External IP address:", response.ExternalIPAddress)
Notes
-----
There doesn't seem to be an easy way to programmatically determine the address of the default gateway.
(Linux and OSX have a "routes" kernel API that can be examined to get this information, but there is
no Go package for getting this information.)
Clients
-------
This library is used in the Taipei Torrent BitTorrent client http://github.com/jackpal/Taipei-Torrent
Complete documentation
----------------------
http://godoc.org/github.com/jackpal/go-nat-pmp
License
-------
This project is licensed under the Apache License 2.0.
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