byte[] blob = new byte[] { 9, 8, 7, 6 };
        // Place blob further ahead to exercise pad adjustment logic
        int secBufOffset = Smb2Constants.SMB2_HEADER_LENGTH + 16; // beyond current bodyIndex (64+8)
        int sessionFlags = Smb2SessionSetupResponse.SMB2_SESSION_FLAGS_IS_NULL;
        buildSessionSetupBody(buf, headerStart, bodyStart, sessionFlags, secBufOffset, blob);

        resp.decode(buf, headerStart);