nat

type MappedPort struct {
	Protocol     string
	InternalPort int
	ExternalPort *int32
	// contains filtered or unexported fields
}

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)
}

type NetStatus struct {
	Nat        NAT
	GlobalIP   net.IP
	MappedPort []*MappedPort
}