Forked from: libp2p/go-nat, itself forked from fd/go-nat.
This fork adds PCP (RFC 6887) with IPv6 firewall pinholes and unicast SSDP discovery.
It carries its own module path so that it can be required directly, rather than through
a replace directive: a replace applies only to the main module, so anything importing
a consumer of this package as a library would otherwise resolve to upstream go-nat and
fail to build against the added API.
The last gx published version of this module was: 1.0.3: QmdwkZHamNNrj7k3G29rnurmW3mFzsDhnyXppNcgYsiBVz