From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joel Newkirk <netfilter@newkirk.us>
Subject: Re: load balancing?
Date: 14 Jun 2003 11:36:55 -0400
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To: Jean-Yves Simon <lethalwp@tiscali.be>
Cc: netfilter@lists.netfilter.org

On Sat, 2003-06-14 at 07:54, Jean-Yves Simon wrote:
> Hello,
> 
> I'm curious if load balancing can be done with iptables, like for
> example forwarding incoming web requests to one of the multiple web
> servers behind the firewall.
> 
> Or is a third party software needed?

If all you need is to distribute requests evenly across a range of IPs
you can use the rule:

iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to
10.10.10.1-10.10.10.16

This example would attempt to distribute incoming HTTP requests evenly
across the specified range of 16 IPs.

j