this.lport = lport;
        this.laddr = laddr;

        try {
            baddr = Config.getInetAddress( "jcifs.smb1.netbios.baddr",
                        InetAddress.getByName( "255.255.255.255" ));
        } catch( UnknownHostException uhe ) {
        }

        snd_buf = new byte[SND_BUF_SIZE];
        rcv_buf = new byte[RCV_BUF_SIZE];

    static final int DEFAULT_SSN_LIMIT = 250;
    static final int DEFAULT_CONN_TIMEOUT = 35000;

    static final InetAddress LADDR = Config.getLocalHost();
    static final int LPORT = Config.getInt( "jcifs.smb1.smb.client.lport", 0 );
    static final int MAX_MPX_COUNT = Config.getInt( "jcifs.smb1.smb.client.maxMpxCount", DEFAULT_MAX_MPX_COUNT );

    public NameServiceClientImpl ( CIFSContext tc ) {
        this(tc.getConfig().getNetbiosLocalPort(), tc.getConfig().getNetbiosLocalAddress(), tc);
    }


    NameServiceClientImpl ( int lport, InetAddress laddr, CIFSContext tc ) {
        this.lport = lport;
        this.laddr = laddr;
        this.transportContext = tc;

        this.baddr = tc.getConfig().getBroadcastAddress();

        this.idleTimeoutDisabled = Config.getBoolean(p, "jcifs.smb.client.disableIdleTimeout", false);

        this.smbLocalAddress = Config.getLocalHost(p);
        this.smbLocalPort = Config.getInt(p, "jcifs.smb.client.lport", 0);
        this.maxMpxCount = Config.getInt(p, "jcifs.smb.client.maxMpxCount", SmbConstants.DEFAULT_MAX_MPX_COUNT);
        this.smbSendBufferSize = Config.getInt(p, "jcifs.smb.client.snd_buf_size", SmbConstants.DEFAULT_SND_BUF_SIZE);

     * 
     * @return timeout for SMB responses, in milliseconds
     */
    int getResponseTimeout ();


    /**
     * 
     * Property <tt>jcifs.smb.client.lport</tt> (int)
     * 
     * @return local port to use for outgoing connections
     */
    int getLocalPort ();


    /**
     * 
     * Property <tt>jcifs.smb.client.laddr</tt> (string)
     * 

        try {
            negotiate( port, resp );
        } catch( ConnectException ce ) {
            // Try an alternate port if there was an issue communicating to the server
            // Only set the alternate port to the port property if it was successful
            int altPort = (port == 0 || port == DEFAULT_PORT) ? 139 : DEFAULT_PORT;
            negotiate( altPort, resp );
            port = altPort;

        path = u.getPath();
        ref = u.getRef();
        if (ref != null) {
            path += '#' + ref;
        }
        port = u.getPort();
        if( port == -1 ) {
            port = getDefaultPort();
        }
        setURL( u, "smb", u.getHost(), port,
                    u.getAuthority(), u.getUserInfo(),
                    path, u.getQuery(), null );
    }

  }

  @Override public ServerSocket createServerSocket(int port) throws IOException {
    return createServerSocket();
  }

  @Override public ServerSocket createServerSocket(int port, int backlog) throws IOException {
    return createServerSocket();
  }

  @Override public ServerSocket createServerSocket(
      int port, int backlog, InetAddress inetAddress) throws IOException {
    return createServerSocket();

    // No port, bad default.
    checkFromStringCase("google.com", -1, "google.com", -1, false);
    checkFromStringCase("192.0.2.1", 65536, "192.0.2.1", -1, false);
    checkFromStringCase("[2001::1]", -1, "2001::1", -1, false);
    checkFromStringCase("2001::3", 65536, "2001::3", -1, false);
  }

  public void testFromStringUnusedDefaultPort() {
    // Default port, but unused.

        return getChallenge(dc, 0);
    }

    public static byte[] getChallenge( UniAddress dc, int port )
                throws SmbException, UnknownHostException {
        SmbTransport trans = SmbTransport.getSmbTransport( dc, port );
        trans.connect();
        return trans.server.encryptionKey;
    }
/**
 * Authenticate arbitrary credentials represented by the