sockfactory.py 文件源码

def map_none(self):
        if self.source_ip == '0.0.0.0':
            try:
                default_gw_if = netifaces.gateways()['default'][netifaces.AF_INET][1]
                self.source_ip = netifaces.ifaddresses(default_gw_if)[netifaces.AF_INET][0]['addr']
            except (OSError, IndexError, KeyError):
                log.critical("Couldn't get interface address. "
                             "Try specifying with '--nat ext:<ip>'.")
                raise
        log.warning('Using internal interface address. Connectivity issues are likely.')
        return PortMappedSocket(self.socket, 'NONE', self.source_ip, self.source_port)