DefaultPingConfig returns default NAT pinger config.

NewNoopPinger returns noop nat pinger.

NewPinger returns Pinger instance.

StageName represents hole-punching stage of NAT traversal.

ErrTooFew indicates there were too few successful ping responses to build requested number of connections.

NoopPinger does nothing.

PingConfig represents NAT pinger config.

Pinger represents NAT pinger structure.

NATPinger is responsible for pinging nat holes.

PortSupplier provides port needed to run a service on.