byte[] token = negoResp.getSecurityBlob();
        final int securityMode = negoResp.getSecurityMode();
        boolean anonymous = this.credentials.isAnonymous();
        final boolean doSigning = securityMode != 0 && !anonymous;
        long newSessId = 0;
        long curSessId = this.sessionId;

        synchronized (trans) {

        int securityMode = Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED;
        if (this.signingEnforced || first != null && first.isSigningRequired()) {
            securityMode = Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED | Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED;
        }

        return securityMode;
    }