Win7/XP, JDK7u5 and IPv6

[BRESCIANI, MARCO (MARCO)]

Hi all,
  following your past suggestions, I'm using Java 7u5 (currently running on 
WinXP, but should have to work on 7 as well) to test my (S)FTP servers. They 
both run and conecting through the IPv4 address I can use them, but I cannot 
connect through the IPv6 address. I'm quite (85%) sure that Corporate has 
turned off firewalls on this PC I'm using (on mine there are much more 
problems) so they should work.

This is a sample code for SSSH/SFTP server. FileZilla says "Network error: 
connection refused".
  Have I done some misconfiguration? Suggestions?

        final Logger LOG_SSHServer = LoggerFactory.getLogger(SimpleSsh.class);
        final String USER_HOME = 
System.getProperty(I18n.getString(Resources.PROP_HOME)) + 
I18n.getString(Resources.USER_HOME);
        final String USED_KEY = "key00.ser";
        final String KEY_SERIAL = "key.ser";
        final int PORT = 22;
        SshServer sshServer;
        final String USERNAME = "username";
        final String PASSWORD = "password";

        sshServer = SshServer.setUpDefaultServer();
        sshServer.setPort(PORT);
//        sshServer.setReuseAddress(true);
        final String keyGen = USER_HOME + '/' + KEY_SERIAL;

        if (SecurityUtils.isBouncyCastleRegistered()) {
            sshServer.setKeyPairProvider(new 
PEMGeneratorHostKeyProvider(keyGen, "RSA", 2048));
        } else {
            sshServer.setKeyPairProvider(
                    new FileKeyPairProvider(new String[] { keyGen }));
        }

        sshServer.setPasswordAuthenticator(new 
CustomPasswordAuthenticator(USERNAME, PASSWORD));

        
sshServer.setSubsystemFactories(Collections.<NamedFactory<Command>>singletonList(new
 SftpSubsystem.Factory()));
        sshServer.setFileSystemFactory(new CustomFileSystemFactory(USER_HOME));

        try {
            sshServer.start();
        } catch (final IOException iOE) {
            LOG_SSHServer.error(iOE.getLocalizedMessage(), iOE);
        }