[SR-Users] Kamailio as SBC / LB Media-Servers farm

[Sammy Govind]

Hey Davy,

Thanks for looking into it, I've already setup RTPproxy as Standard
procedure as published in this Kamailio
KB/Wiki<http://kb.asipto.com/asterisk:realtime:kamailio-3.1.x-asterisk-1.6.2-astdb>
.
RTPproxy is currently working fine for any NAT'd cleints. i.e

Client(10.2.3.45)->VMAsterisk(NAT'd)<--->Windows7Host(172.16.30.30)<-->NAT'd<---->(internet)<--->Kamailio<-->Asterisk

This works fine. the only thing now I'm wishing to establish is put
Asterisks/Freeswitches in Private/LAN block so I've no limitation on buying
Public IPs for Media-Services.

I was also hoping in the beginning that stock/standard configurations for
this setup. I'd to start RTPproxy in Bridge mode and also force_send_socket
before relaying calls to private-ip Servers etc. but all in vain.

I'm still working to make it work like I pictured it. Any help in it would
be much appreciated. I'm already very thankful to Alex for helping and
pointing to some direction last-night.

Thanks and Best Regards,
Sammy

On Fri, Nov 4, 2011 at 12:03 PM, davy van de moere <
davy.van.de.moere at gmail.com> wrote:

> If you want to have your Asterisks on only private IPs, you will need to
> use some sort of RTPProxy, the standard config examples typically work for
> that setup.
>
> On the other hand, some people are starting to come back from that topo,
> and just use Asterisk (or freeswitch) as the RTPProxy. And perhaps you can
> just have your asterisk on a public IP. As the extra security you might
> think you have because it has a private IP, is much less then what the
> diagram says.
>
> Anyhow all is possible, the beauty of flexibility :)
>
>
>
> 2011/11/4 Sammy Govind <govoiper at gmail.com>
>
>> Hello List,
>>
>> I've successfully configured Kamailio with a farm of asterisk servers in
>> L/B | F/O mode. The topology is something like below:
>>
>> User<-->Kamailio<-->Asterisk-Servers
>> Both kamailio and Asterisk serevrs are on public IPs
>>
>> *The problem:*
>> Kamailio and Asterisk Servers need to be on Public IPs in order to fully
>> handle NAT/media related issues. Whereas what I require is to have two
>> interfaces at kamailio server, one is Public other is Private and All the
>> Asterisk Servers should be on LAN/Private IPs.
>>
>> I've tried making a scenario as per my requirement (attached image) but
>> there are some serious NAT and media issues.
>>
>> Can anyone help me how to handle NAT'd Asterisk servers behind Kamailio?
>>
>> Thanks and Best Regards.
>> Sammy
>>
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