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Re: [lvs-users] lvs-nat: is it possible to have lvs-nat and lvs-tun with

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] lvs-nat: is it possible to have lvs-nat and lvs-tun with 1 geographically located web server?
From: "William Ottley" <williamottley@xxxxxxxxx>
Date: Wed, 9 Jan 2008 17:37:26 -0500
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@xxxxxxxxxxx> 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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>



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---------------
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- the story ends, you wake up in your bed and believe whatever you
want to believe. You take the red pill - you stay in Wonderland and I
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