[SR-Users] Same Via Tag for INVITE and ACK on S/L loadbalancer

[Yuriy Gorlichenko]

ACK for successull response is a new transaction. It has to be different.
May be it is better to point provider to this?

On Mon, 10 Feb 2020, 14:26 Sebastian Damm, <damm at sipgate.de> wrote:

> Hi,
>
> I stumbled upon an interop problem with a carrier. We have the
> following scenario:
>
> Gateway --> Loadbalancer --> Carrier
>
> The loadbalancer generates a Via header for each request. But since it
> is stateless, the Via tag is generated for each request. As a
> consequence, the Via tag in the ACK differs from the one in the
> INVITE. And one carrier doesn't handle those ACKs if the Via tag
> differs.
>
> Is there a way to force the creation of a "deterministic" Via branch
> tag? For example, building it from a hash over call-id and from-tag or
> something like that?
>
> Thanks in advance
> Sebastian
>
> --
> Sebastian Damm
> Voice Engineer
> __________________________________________
> sipgate GmbH
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20200210/4fa1357b/attachment.html>