// Enforced -> required+enabled
        SmbTransportImpl enforced = new SmbTransportImpl(ctx, address, 445, null, 0, true);
        assertEquals(Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED | Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED,
                enforced.getRequestSecurityMode(first));

            log.debug("Secure negotiation does not apply, is SMB3.1");
            return;
        }
        final Smb2NegotiateRequest negoReq = new Smb2NegotiateRequest(sess.getConfig(), trans.getRequestSecurityMode(nego));

        log.debug("Sending VALIDATE_NEGOTIATE_INFO");
        final Smb2IoctlRequest req = new Smb2IoctlRequest(sess.getConfig(), Smb2IoctlRequest.FSCTL_VALIDATE_NEGOTIATE_INFO);

     */
    private SmbNegotiation negotiate2(final Smb2NegotiateResponse first) throws IOException, SocketException {
        final int size = 0;

        final int securityMode = getRequestSecurityMode(first);

        // further negotiation needed
        final Smb2NegotiateRequest smb2neg = new Smb2NegotiateRequest(getContext().getConfig(), securityMode);
        Smb2NegotiateResponse r = null;