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

[Daniel-Constantin Mierla]

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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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
  Feb 21-24, 2022 (America Timezone)
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