Hi Joe, i try with our $error_detection = 1; but still Unsupported field 'AZ'. Unfortunately, the checksum is required from the requirements of a project then I can test. Some other idea? Thanks, Luigi Joe Atzberger wrote:

I don't know that checksums are entirely tested.

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.

That being said, you can also edit C4/SIP/Sip.pm line 38 to: our $error_detection = 1;

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.

--joe

On Thu, Feb 26, 2009 at 5:14 AM, Luigi Ipsa <l.piccione@ipsa.eu> wrote:

...

I try to send message to ACS with checksum AZ option but on syslog i read:

Unsupported field 'AZ' in Patron Info message Unsupported field 'AZ' in Checkout message

how can I do to enable checksum on server?

Thanks

Luigi

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