From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Jan Engelhardt <jengelh@inai.de>
Cc: Jim Mellander <jmellander@lbl.gov>, netfilter@vger.kernel.org
Subject: Re: Netfilter applied to specific interfaces only
Date: Sat, 9 Mar 2013 23:10:44 +0100 [thread overview]
Message-ID: <20130309221044.GA3419@localhost> (raw)
In-Reply-To: <alpine.LNX.2.01.1303082046110.28399@nerf07.vanv.qr>
On Fri, Mar 08, 2013 at 08:52:37PM +0100, Jan Engelhardt wrote:
>
> On Friday 2013-03-08 20:14, Jim Mellander wrote:
> >
> >In the HPC world, and in network intrusion detection, network
> >performance is paramount. We've found that just having the iptables
> >kernel module loaded without any ruleset substantially reduces
> >performance at high traffic rates.
>
> This one is a known issue with ip_tables/x_tables, and solved in
> xtables2 where you can deallocate the base chains when empty -- (more
> accurately, they do not exist by default and need to be created first)
> -- given finer control over what is being executed.
Just for the record: this idea was initially introduced by nftables
back in 2009.
Regards.
next prev parent reply other threads:[~2013-03-09 22:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-08 19:14 Netfilter applied to specific interfaces only Jim Mellander
2013-03-08 19:52 ` Jan Engelhardt
2013-03-09 22:10 ` Pablo Neira Ayuso [this message]
2013-03-11 7:55 ` Jan Engelhardt
2013-03-10 14:34 ` Humberto Jucá
-- strict thread matches above, loose matches on Subject: below --
2013-03-11 2:46 Neal Murphy
2013-03-11 11:42 ` Humberto Jucá
2013-03-15 17:36 ` Jim Mellander
2013-03-15 19:25 ` Jozsef Kadlecsik
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