26 okt 2012 kl. 21:08 skrev Klaus Darilion <[email protected]>:

> Am 26.10.2012 14:08, schrieb Olle E. Johansson:
>> 25 okt 2012 kl. 19:05 skrev Klaus Darilion <[email protected]>:
>> 
>>> Kamailio uses the next hop target (probably the URI in the Path header) and 
>>> searches for open TCP connections to this target. I guess the Path header 
>>> contains the private IP address of the outbound proxy, thus it does not 
>>> match the open TCP connection. If there is not outboundproxy, the solution 
>>> is simple: as always use fix_nated_register() on REGISTER. Then, after 
>>> lookup() the proxy will search for a TCP connection to the "received" 
>>> IP:port and find and uses the existing connection.
>> Thinking about TLS - how do we match there?
> 
> AFAIK there is no difference to TLS. If there is a TLS connection whose 
> remote address matches the next hop, it will be used.

That's bad. We need to check the domains in the certificate before re-using it. 
If they showed NO client cert, we should open a new one.
If they showed a client, we should verify.

Will the on-send route give me the possibility or is it triggered before 
kamailio selects a tcp connection? I'm a bit unclear of the
exact situation where the on-send route is called.

/O
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