negoReq.getDialects()));

        Smb2IoctlResponse resp;
        try {
            resp = send(req, RequestParam.NO_RETRY);
        }
        catch ( SMBSignatureValidationException e ) {
            throw new SMBProtocolDowngradeException("Signature error during negotiate validation", e);
        }
        catch ( SmbException e ) {
            if ( log.isDebugEnabled() ) {