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Considering a client (CL), a director (D) with NAT enable, and a
real-server (RS).

Here the IP adresses :
CL -> IPa
D -> IPb (VIP)
RS -> IPc


Here is the description of one request from client to a service of the
real-server :

1. CL send a request : from IPa to IPb
2. Director receive the request, and decide to forward it to the
real-server : from IPb to IPc
3. RS receive the request, and respond to it : from IPc to IPb
4. Director receive the response and forward it to the client : from
IPb to IPa

The Client think that the director is the real-server
The Real-server don't know anything about the client, he think that the
client is the director.

Matthieu MARC

Arun Manjunath a écrit :
>
> Hi Joe,
>
> I did read the document for LVS-NAT on same network.
> But i'm still a little confused as to how the Real
> Server knows the client ip-address. I thought it was
> demasquerading from the client to director and
> director now sends a packet with src ip as the
> ip-address of the director and dest as chosen real
> server.
> The replies thus logically go back through the
> director after being demasqueraded at the director.
> If i'm wrong, then is there a way to do this.
> Ideally we would like to use an application server on
> any platform , not necessarily Linux.
> If there's any resource on this could you please let
> me know.
> Thanks,
> Arun.
>
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