[OpenSIPS-Users] Redirect to independent servers

[Gabriel Georgescu]

Hi,

The software looks at SIP level for the caller's IP.
I do not know exactly if in Contact header or in Owner address from 
message body but in any way it is RFC compliant and this canot be changed.

Best regards,
Gabriel


At 11:47 AM 8/13/2009, Bogdan-Andrei Iancu wrote:
>Hi Gabriel,
>
>But the software you mentioned, where is it looking for the caller's IP
>- network level? sip level ?
>
>Regards,
>Bogdan
>
>Gabriel Georgescu wrote:
> > Thank you for your detailed answer Brett!
> > The problem with this additional X-Original-IP header is that it will
> > not be recognized by the software on the destination voip server. And
> > I cannot modify that software.
> >
> >
> > At 12:58 AM 8/13/2009, Brett Nemeroff wrote:
> >> Gabriel,
> >> You can't really set a call limit if you perform the redirects
> >> statelessly. Basically the server wouldn't know the call count per
> >> server if you did that.
> >>
> >> What I see most people do here is to add some sort of header like
> >> X-Original-IP with the original IP of the request. Then on the
> >> destination server(s), use that header if it is present.
> >>
> >> Of course, you should really remove any existing X-Original-IP
> >> headers before adding one to keep users from spoofing.
> >>
> >> -Brett
> >>
> >> On Wed, Aug 12, 2009 at 2:52 PM, Gabriel Georgescu
> >> <gabrielgeo99 at gmail.com <mailto:gabrielgeo99 at gmail.com> > wrote:
> >>
> >>     Hi List,
> >>
> >>     Can anybody give me an ideea? I try to implement a load balancing
> >>     scenario or call distribution to a farm of independent voip servers,
> >>     but the original caller IP has to be preserved. Because these servers
> >>     have their own billing based on original caller IP.
> >>     I understand that it might be possible to do this by answering to the
> >>     initial request with a 'redirect' message specifying eafch time the
> >>     new server IP.
> >>     Is this working, or is this the best way to do it?
> >>     Also I want to be able to probe if the independent servers are alive
> >>     and set a maximum calls redirected/minute limit for each server.
> >>     Can all this be done with opensips?
> >>
> >>     Thanks in advance,
> >>     Gabriel
> >>
> >>
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