Hi all,
I am using Kamailio (5.7.2, Debian 11, Python KEMI) in a
mutli-homed environment with the topos module to hide the topology.
I have noticed that when I use `set_send_socket` or `$fsn` to force the
socket it's sent from, it breaks topos and the ACK is not proxied to the
other leg of the call. I am calling record_route() *after* forcing the
socket.
If I disable TOPOS the ACK works as expected, and the signalling looks
correct.
Or, with TOPOS enabled, if I comment out set_send_socket TOPOS works as
expected.
If I disable enable_double_rr, TOPOS works as expected and the ACK is
forwarded, but without the double RR subsequent in-dialog requests use the
wrong socket.
One other observation, when I change the send socket I also see these
warnings in the logs:
24(32) WARNING: PY3 {ACK}: dialog [dlg_handlers.c:1348]: dlg_onroute():
tight matching failed for ACK with
callid='!!:MByLMlFAM.NfWxFAM.cAMxyfWjyLz.yAO.y6MxF1MxVZWG4ZMy**'/55,
ftag='2023101714101800015'/19,
ttag='2f55349a-2c59-4e37-bf58-fd84fb69ece9'/36 and direction=0
24(32) WARNING: PY3 {ACK}: dialog [dlg_handlers.c:1355]: dlg_onroute():
dialog identification elements are
callid='2023101714101800015@2900-0601-0284-80'/37, caller
tag='2023101714101800015'/19, callee
tag='2f55349a-2c59-4e37-bf58-fd84fb69ece9'/36
Is anyone using TOPOS + forcing the socket, or could someone advise where I
am going wrong?
Thanks in advance
Matthew
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