lvs + nat

[Joseph Mack NA3T]

On Fri, 1 Sep 2006, Viktors Rotanovs wrote:

> Hi,
>
> I'm using LVS-DR box to balance incoming traffic to several servers.
> These servers redirect incoming connections from certain networks to
> another port instead of default one using iptables (-t nat -A
> PREROUTING -i eth0 -p tcp -s 10.1.1.0/24 -d 10.0.1.10 --dport 1234 -j
> REDIRECT --to-ports 2345).

incoming packets arriving at the director to VIP:1234 are 
redirected to VIP:2345

> Here's the problem: if I try to move LVS to one of these servers,

I don't know what this means.

> port redirection happens before LVS.

you've setup iptables to redirect the packets before they 
arrive at the director.

> Is it possible to do 
> LVS first and port redirection afterwards on kernel 2.6?

yes

http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.rewrite.ports.html

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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