nat

package
Version: v0.3.7 Latest Latest
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Published: Aug 2, 2015 License: Apache-2.0, MIT Imports: 9 Imported by: 0

README

go-nat

GoDoc status

Documentation

Overview

Package nat implements NAT handling facilities

Index

Constants

This section is empty.

Variables

View Source
var ErrNoExternalAddress = errors.New("no external address")
View Source
var ErrNoInternalAddress = errors.New("no internal address")
View Source
var ErrNoNATFound = errors.New("no NAT found")

Functions

This section is empty.

Types

type NAT

type NAT interface {
	// Type returns the kind of NAT port mapping service that is used
	Type() string

	// GetDeviceAddress returns the internal address of the gateway device.
	GetDeviceAddress() (addr net.IP, err error)

	// GetExternalAddress returns the external address of the gateway device.
	GetExternalAddress() (addr net.IP, err error)

	// GetInternalAddress returns the address of the local host.
	GetInternalAddress() (addr net.IP, err error)

	// AddPortMapping maps a port on the local host to an external port.
	AddPortMapping(protocol string, internalPort int, description string, timeout time.Duration) (mappedExternalPort int, err error)

	// DeletePortMapping removes a port mapping.
	DeletePortMapping(protocol string, internalPort int) (err error)
}

protocol is either "udp" or "tcp"

func DiscoverGateway

func DiscoverGateway() (NAT, error)

DiscoverGateway attempts to find a gateway device.

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