Hi Jorge,
Are you able to record a .pcap of this message sequence? Also, if you
can afford to extract some "log_level = 4" debug logs, that would be
even better.
Best regards,
Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com
On 30.07.2018 11:15, Jorge Luis Ortea wrote:
Hi all,
Very strange case, OpenSIPS in the middle SIP transaction ignores one
end of the communication.
The schema is very simple, OpenSIPS exchanges SIP traffic between
another OpenSIPS (with a passthrough T38 Asterisk behind) and a SBC,
during a T38 fax call.
The sniffer on the Opensips interfaces shows that the packets are
arriving correctly.
In the capture can see the packets with red arrow are ignored, not
even writes in log, as if this packet did not exist, it always ignores
the same SIP packets, all calls are same.
Without firewall, selinux, ip or port changes ....
A curious detail, from a moment Opensips ignores packets from
10.201.198.60, however after BYE packet seems that it manages SIP
packets again.
Attachment wireshark capture:
http://pasteall.org/pic/show.php?id=2c8da47592429e09e462dae45f41e74c
Very Thanks.
Regards.
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