Hello,
I am trying to play with domain names in the Record-Route header.
This is for a case when kamailio is doing the translation between UDP and TLS,
so
it is doing double record routing.
I want to use the ip addresses on inbound UDP leg and
domain names on the outbound TLS leg in record-route headers.
I'm doing this by calling the following function
-- record_route_preset("xyz.com;transport=tls", "1.1.1.1"); ----
This does the trick of adding a Record-Route in initial TLS invite on the
outbound leg:
-----------------
Record-Route: <sip:xyz.com;transport=tls;lr=on>
Record-Route: <sip:1.1.1.1;lr=on>
----------------
My problems start when the calling party sends a ACK to kamailio over UDP
with the Route header
Route: <sip:1.1.1.1;lr=on>,<sip:xyz.com;transport=tls;lr=on>
I call loose_route() function in config file and as per my expectation,
Kamailio should see that both
these Route headers belong to Kamailio and it should use Request URI for
forwarding the ACK,
but unfortunately, Kamailio thinks that xyz.com is some other entity and tries
to forward the ACK
to xyz.com doing a DNS query.
What can i do to avoid this problem, i need kamailio to recognize that
"xyz.com" is kamailio as i
have a defined an alias in the config file too as follows:
alias=xyz.com:5060
Thanks for your help in advance,
Nitesh
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