[Asterisk-Users] Odd SIP error message

[Johann]

As of late, I keep seeing a very odd error message in Asterisk and regardless of
how much debugging or verbose I set I can't get more detailed info to find out
what exactly is causing the error.  It's every few seconds and in no regular
pattern either.

Jun 23 05:24:17 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:18 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:20 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:24 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:28 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:32 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:36 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:40 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum
Jun 23 05:24:44 NOTICE[29057] chan_sip.c: SIP: Received packet with bad UDP checksum

Any advice on what I can do to get more information?  I see it occur when
Asterisk doesn't think there are any active channels going on as well.  There's
a SIP device that is misbehaving somewhere.  Most of the SIP phones are Polycom
IP600/601s.


--johann