[OpenSIPS-Users] set_advertised_protocol ....

Bogdan-Andrei Iancu bogdan at opensips.org
Thu Aug 13 15:38:16 EST 2020

Hey Pete,

IMHO you are playing with fire here - non SIP balancer doing protocol 
exchange :D. Seriously now, this is a receipt for disaster


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
OpenSIPS Summit 2020 online

On 8/12/20 12:28 PM, Pete Kelly wrote:
> Hi all :)
> I am sending an INVITE out to a registered endpoint via a (non SIP) 
> load balancer.
> The load balancer provides a transparent TCP/TLS interface (TCP to 
> opensips, TLS to the endpoint)
> The obvious problem I am having here is that when the UAC receives the 
> INVITE, the transport set by OpenSIPS in the Contact /Via/Record-Route 
> headers are all set to TCP, because OpenSIPS has no knowledge of any 
> TLS involved - which causes problems when any future transaction is 
> sent by theĀ UAC.
> Ideally I want to be able to change any reference to the TCP transport 
> to TLS, kind of how set_advertised_address() and set_advertised_port() 
> work, however with the protocol.
> Is it currently possible? (using opensipsĀ 3.1)
> Pete
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