if ( addr != null ) {
            try {
                def = InetAddress.getByName(addr);
            }
            catch ( UnknownHostException uhe ) {
                log.error("Unknown host " + addr, uhe);
            }
        }
        return def;
    }


    public static InetAddress getLocalHost ( Properties props ) {
        String addr = props.getProperty("jcifs.smb.client.laddr");