[SR-Users] Mid-dialog failover without virtual IP

[Ovidiu Sas]

Maybe we should deprecate and remove the advertise_address.

-ovidiu

On Fri, Jan 14, 2022 at 10:34 Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
>
> advertise_address is an old global parameter that is only for Via. Try to
> use the advertise attribute for listen parameter -- see core cookbook for
> more details.
>
> Cheers,
> Daniel
> On 14.01.22 08:27, Muhammad Danish Moosa wrote:
>
> Hi,
>
> I have a pair of kamailio stateful proxies and am trying to achieve
> Active-Passive failover model with DMQ dialog replication. Primary Proxy is
> working in the middle of  2 SBCs and all nodes are within the same network
> so NATing is NOT involved ;secondary proxy is accessible through VPN. It's
> pretty simple configuration, proxy is just adding and removing headers in
> the middle.
>
> So if I stop the kamailio service on primary IP , SBCs blacklist that and
> start sending new invites to secondary IP. That's all good.
>
> But if I reproduce this failover during a connected session , SBCs do not
> send mid-dialog requests/responses to failover IP. I can see they still try
> to send messages to primary SBC which obviously end up with timeout. I
> understand the most natural solution is HA with Virual IP but it's not
> possible because secondary IP is accessible through VPN.
>
> I tried to use DNS SRV record with priorities but that also does not work
> with mid-dialog messages, I also have tried to change record-route/via
> header to fqdn through advertise_address. Its not changing record-route but
> via only but I am still not getting expected results.
>
> Any guidance of possible solution(s) here will be appreciated.
>
>
>
>
>
>
> --
> Muhammad Danish Moosa
>
> " The core of mans' spirit comes from new experiences. "___ Christopher
> McCandless
>
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