break; /* normal for NTLMSSP */
        default:
            if (log.isDebugEnabled()) {
                log.debug("Error code: 0x" + Hexdump.toHexString(resp.getErrorCode(), 8) + " for " + req.getClass().getSimpleName());
            }
            throw new SmbException(resp.getErrorCode(), null);
        }
        if (resp.isVerifyFailed()) {
            throw new SmbException("Signature verification failed.");