I don't know if this will help, but the checksum is part of the UDP
header which should be computed by the sender prior to the data being
sent. It is computed using the data that is to be sent. UDP at the
sender side performs the one's complement of the sum of all the 16-bit
words in the segment. This result is put in the checksum field of the
UDP segment. When it gets to the receiver all of the 16 bit words are
added together with the checksum. If the result is all 1's, then there
are no errors. Otherwise, there are errors. So, unless the hardware
sending out the data is computing the checksum incorrectly, my guess is
that it is network related.
--Timothy Karl
Bryan Field-Elliot wrote:
We have a customer trying to dial through our server, and our server
is throwing tons of these log messages:
Jul 27 14:21:02 NOTICE[29210]: rtp.c:431 ast_rtp_read: RTP: Received
packet with bad UDP checksum
Is it pretty certain, that these are caused by a bad or misconfigured
router along the path, or something else network-related? As opposed
to the SIP hardware itself? The SIP ATA is the same model in use by
many of our other customers, without any problems.
Thank you,
Bryan
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