def METHOD_NAME():
    sock = eventlet.listen(('::', 3900, 0, 0), family=socket.AF_INET6)
    while True:
        conn, cli = sock.accept()
        if cli[0] not in vidtargetbypeer or not sessionsbyip.get(cli[0], None):
            conn.close()
            continue
        try:
            vidclient = socket.create_connection((vidtargetbypeer[cli[0]],
                                                  3900))
            vidclient.setsockopt(socket.IPPROTO_TCP, socket.TCP_MAXSEG, 1456)
        except Exception:
            conn.close()
            vidclient.close()
            continue
        eventlet.spawn_n(handle_connection, conn, vidclient)