Hi All,

I've come accros a scenario where a proxy is sitting on a private
address range and inserts a record-route specifying the the private address.

This causes issues whereby the BYE to an INVITE attempts to relay to the
private address defined in record-route.

I was wondering, if we were inject a received and rport parameter into
the record-route header of the original invite, whould kamailio relay
the response (BYE) to the receive/rport destination instead of the uri
defined in the record-route header.

As an example, initial invite comes in with a record-route as follows:

Record-Route: <sip:172.17.0.2:5062;lr;ftag=b4551d29>

If we injected received and rport as follows:

Record-Route:
<sip:172.17.0.2:5062;lr;ftag=b4551d29;rport=33429;received=212.172.2.212>

and relayed the message to the B2B.

Then, I assume, when the B2B creates its BYE message, the Route header
should look like this:

Route:
<sip:172.17.0.2:5062;lr;ftag=b4551d29;rport=33429;received=212.172.2.212>

Once this hits the kamailio instance to relay to the last route header
as mentioned above, would it set $du to received:rport like it does with
Via headers?

Thanks

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