* 
     * This does not provide any actual downgrade protection if SMB1 is allowed.
     * 
     * It will also break connections with SMB2 servers that do not properly sign error responses.
     * 
     * @return whether to enforce the use of secure negotiation.
     */
    boolean isRequireSecureNegotiate ();


    /**
     * Enable port 139 failover
     * 

            throw new SmbException("Not an SMB1 request");
        }

        this.negotiated.setupRequest(request);

        if ( response != null ) {
            request.setResponse(response); /* needed by sign */
            response.setDigest(request.getDigest());
        }

        try {
            if ( log.isTraceEnabled() ) {
                log.trace("Sending " + request);
            }