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
<<mailto:[email protected]>[email protected]> 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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