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From: Joel Newkirk <netfilter@newkirk.us>
To: Ian Douglas <ian@icreditvision.com>, netfilter@lists.netfilter.org
Subject: Re: using iptables for poor-man's load balancing?
Date: Wed, 19 Feb 2003 19:30:05 -0500	[thread overview]
Message-ID: <200302191930.05271.netfilter@newkirk.us> (raw)
In-Reply-To: <200302191912.06748.netfilter@newkirk.us>

On Wednesday 19 February 2003 07:12 pm, Joel Newkirk wrote:

> AFAIK, you can only DNAT to a contiguous range of IPs from a single
> rule, and the rule construction you have here will ignore 'excess'
> destinations.  

Well, I was wrong again.  :^)  Digging a bit further after posting this I 
find that multiple "-to" entries ARE valid, and should do what you want.  
The only reason I can think of (now) that all your traffic went to the 
first on the list is that there simply wasn't any load to speak of.  How 
were you testing?  Multiple simultaneous connections?  Otherwise (from 
my latest reading :^) it will simply keep sending traffic to the first 
on the list, only using the next one if there is more traffic 
'currently' (presumably based on the connection-tracking data) on the 
first destination than on the second.

> j

j



  reply	other threads:[~2003-02-20  0:30 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-18 21:53 using iptables for poor-man's load balancing? Ian Douglas
2003-02-18 22:02 ` Ian Douglas
2003-02-19 23:17 ` Ian Douglas
2003-02-20  0:12   ` Joel Newkirk
2003-02-20  0:30     ` Joel Newkirk [this message]
2003-02-20  0:55       ` Ian Douglas
2003-02-20  4:24         ` Joel Newkirk
2003-02-21  8:48 ` Fabrice MARIE
  -- strict thread matches above, loose matches on Subject: below --
2003-02-18 22:10 Andrej Ricnik
2003-02-19 18:47 ` Ian Douglas
     [not found] <20030219232644.14732.18331.Mailman@kashyyyk>
2003-02-20  3:00 ` mpboden
2003-02-20  3:39   ` SBlaze

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