[Kamailio-Devel] How does Kamailio match an ACK for a stateless [3456]XX replied by Kamailio itself?

[Iñaki Baz Castillo]

El Lunes, 15 de Diciembre de 2008, Alex Balashov escribió:
> Iñaki Baz Castillo wrote:
> > Thanks a lot for pointintg it out, but I don't understant why "To_tag" is
> > preferred over "branch".
>
> It is not my impression that the to-tag is compared as such.  Instead,
> it appears that a CRC digest of the Via headers is built into the to-tag.
>
> If you look in modules/sl/sl_funcs.c:sl_send_reply_helper() you will see
> that calc_crc_suffix() is called there too in the generation of the
> reply's to-tag.
>
> So, it appears to me that the to-tag - or some part of it - is in effect
> a derivative of the Via values.

ahh, ok!
Thanks.

-- 
Iñaki Baz Castillo