From mboxrd@z Thu Jan  1 00:00:00 1970
From: Francois Leygues <francois.leygues@nextenso.com>
Subject: iptables load balancing  problems
Date: Tue, 24 Jun 2003 15:01:57 -0100
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-t nat -A OUTPUT -p tcp -d xxx -j DNAT --to x1 --to x2

provides a very simple load balancing.

It works very well for light workloads (1 req per second) but for a sustained load
(300 req/s, generated by httperf) after a few seconds, the output is locked on one
of the target address, the other one never being selected.

Worse: after that, even after a delete of the rule, followed by a redefinition of the rule
the bad behaviour is not corrected. A reboot is needed to get back the feature...

I have not tryed to debug this, would you have some hints ?
Bye.