I don't know that checksums are entirely tested. <br><br>I think they are largely unnecessary in modern systems. The protocol was written expecting that the SC might be connected to ACS via a hundred feet of serial cable, where transfer integrity was error-prone. If you are using today's network hardware, I think you should feel free to run without them. <br>
<br>That being said, you can also edit C4/SIP/Sip.pm line 38 to:<br><div style="margin-left: 40px;">our $error_detection = 1;<br></div><br>and see if that doesn't accomplish what you want. This can be considered a bug or TODO with the SIP implementation inasmuch as the example config file has attributes for "error-detect" that are not actually in control. <br>
<br>--joe<br><br><div class="gmail_quote">On Thu, Feb 26, 2009 at 5:14 AM, Luigi Ipsa <span dir="ltr"><l.piccione@ipsa.eu></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
I try to send message to ACS with checksum AZ option but on syslog i read:<br>
<br>
Unsupported field 'AZ' in Patron Info message<br>
Unsupported field 'AZ' in Checkout message<br>
<br>
how can I do to enable checksum on server?<br>
<br>
Thanks<br>
<br>
Luigi<font color="#888888"><br></font></blockquote></div>