if ( token != null ) {
                request = new Smb2SessionSetupRequest(this.getContext(), securityMode, negoResp.getCommonCapabilities(), 0, token);
                // here, messages are rejected with NOT_SUPPORTED if we start signing as soon as we can, wait until
                // session setup complete

                request.setSessionId(sessId);
                request.retainPayload();

            synchronized ( this.outLock ) {
                int n = smb.encode(buffer, 4);
                Encdec.enc_uint32be(n & 0xFFFF, buffer, 0); /* 4 byte session message header */
                if ( log.isTraceEnabled() ) {
                    do {
                        log.trace(smb.toString());
                    }