Hi Alex

> Are you talking about the proxy's own Via hop?

Exactly...

> If your "advertised" address is an IP rather than a DNS name, that
> should be mimicked in the Via headers inserted by the proxy.

Well the issue is, that we operate two kamailio proxy with DMQ synced
states so that if one fails, the other will get the traffic.

But that does not work, if the Via contains the IP address of the
proxy. So I added a hostname in the advertised config to have a
hostname pointing to both ip addresses in the Via.

This works towards our IC SBC and towards other kamailio instances we
use as registrar, but not towards one of our older 'commercial' voice
switches.

So towards some 'endpoints' I would need an IP in the Via and towards
others I would need a hostname.

But I realised, we most probably have to re-consider our idea to run
all our kamailio instances in a load-balanced DMQ master-master set-up.

A CPE, even when the NAPTR entry or DNS Hostname it registers to points
to multiple registrar instances, in the end registers to ONE ip address.
In a NAT scenario, this is the IP which the SIP ALG on the customer
firewall handles.

In a Master-Master registrar scenario, the INVITE towards a CPE might
originate from the IP of the registrar that CPE did not register to
and therefore the SIP ALG not knowing about and never make it through
NAT.

PS: Still looking for ideas, how this could be solved.

--
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
--
I m p r o W a r e   A G    -    Leiter Commerce Kunden
______________________________________________________

Zurlindenstrasse 29             Tel  +41 61 826 93 00
CH-4133 Pratteln                Fax  +41 61 826 93 01
Schweiz                         Web  http://www.imp.ch
______________________________________________________
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
To unsubscribe send an email to sr-users-leave@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe: