Hello Chris,
Load the localcache module and use the cache functions to store / fetch
keys in the cache (
http://www.opensips.org/Resources/DocsCoreFcn19#toc110 ).
Build the name of the keys based on the nonce, so that you name is nonce
and value is the IP of the server.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 04/22/2013 03:35 PM, Chris Maciejewski wrote:
Hello Bogdan,
Thank you for explanation.
Could you please point me in the right direction to Documentation
where I can find functions to retrieve nonce<->server mapping
information from localcache?
If SRV record in this scenario would have SRV 1 - priority 10, SRV 2 -
priority 20, would OpenSIPS always send requests to SRV 1 (and only
switch to SRV 2 in case SRV 1 is down)?
Best regards,
Chris
On 22 April 2013 12:21, Bogdan-Andrei Iancu<[email protected]> wrote:
Hello Chris,
The INVITE (2) is not a re-INVITE, but an initial INVITE - it does not
belong to the same dialog as INVITE (1).
Considering that they are 2 different initial requests, based on DNS lookup,
it is impossible to force their routing to the same back server (at least
not based on SIP signalling).
A solution may be:
- when the 407 is send back to uac, opensips makes an short entry (10
secs lifetime) in localcache, remembering the mapping between the auth nonce
and the server which generated it.
- when opensips receives an INVITE with credential, you check in
localcache for the mapping with received nonce -> you will know where to
send it (the server).
So you actually do DNS only for the INVITEs without credentials.
Best regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 04/21/2013 11:26 AM, Chris Maciejewski wrote:
Hi,
I have a scenario where OpenSIPS relays proxy authentication to PSTN
gateway which uses SRV records of equal priority and weight. Example
SIP diagram can be found below:
https://dl.dropboxusercontent.com/u/3182365/OpenSIPS-SRV-Auth.pdf
Would it be possible to make OpenSIPS send Re-INVITE marked as (2) in
diagram above to the same host where initial INVITE was sent?
Kind regards,
Chris
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