[lvs-users] lvs-nat: is it possible to have lvs-nat and lvs-tun with 1 geographically located web server?

[William Ottley]

Hey there Graeme,

Thanks for the input. As I suspected, but in truth, i'm just not that
good with the lvs software.
and I don't have the time to tinker with it :(

thanks again for your input!

William

On Jan 9, 2008 4:50 PM, Graeme Fowler <graeme at graemef.net> wrote:
> William
>
> The prerequisite for NAT to work is that the return packets from the realservers to clients go back through the director.
>
> In DR or TUN you can succeed without this, but the realservers _could_ route back through the director - this just isn't very common.
>
> In your case, you could add a "geographic" server to your NAT setup if and only if that server sends all its' responses back through the director. That may, but most likely won't, be possible.
>
> Note that your understanding of things as "realservers having to see the CIP" is a bit wrong - they have to have a route to the clients, and it has to go the right way for the connection to succeed. That is to say that the two ends of the connection - the client and the LVS, however configured - need to complete the three way handshake to establish the connection.
>
> Graeme.
>
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