From: Patrick McHardy <kaber@trash.net>
To: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: Jan Engelhardt <jengelh@medozas.de>,
Phil Oester <kernel@linuxace.com>,
netfilter-devel@vger.kernel.org
Subject: Re: [PATCH,RFC] Route match
Date: Thu, 03 Jul 2008 20:53:56 +0200 [thread overview]
Message-ID: <486D2044.3090108@trash.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0807031140480.1816@blackhole.kfki.hu>
Jozsef Kadlecsik wrote:
> On Thu, 3 Jul 2008, Jan Engelhardt wrote:
>
>>> TODO: add IPv6 support to kernel side
>>>
>>> Examples:
>>>
>>> Egress filtering:
>>> iptables -A FORWARD -m route ! --route-src-exists -j DROP
>> That's what rp_filter is for.
>>
>>> Ingress filtering:
>>> iptables -A FORWARD -i $EXTERNAL_IF -m route --route-src-exists -j DROP
>> rp_filter again.
>
> Quick and not good examples, I'd say. The main problem with rp_filter is
> that it drops the packets >silently<. The real benefit of such a match is
> the possibility to log (and drop) faked packets. If the patch had IPv6
> support, one could add that additionally (as far as I know) there's no
> rp_filter for IPv6 at all.
I agree. While I find rp_filter highly annoying (Debian has it enabled
by default), this patch at least allows you to notice whats going on
easily. I'm also sure there are people who would like to use rp_filter
like functionality for IPv6.
next prev parent reply other threads:[~2008-07-03 18:54 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-03 0:39 [PATCH,RFC] Route match Phil Oester
2008-07-03 7:18 ` Jan Engelhardt
2008-07-03 9:50 ` Jozsef Kadlecsik
2008-07-03 11:22 ` Jan Engelhardt
2008-07-03 12:39 ` Jozsef Kadlecsik
2008-07-03 13:13 ` Jan Engelhardt
2008-07-03 13:31 ` Jozsef Kadlecsik
2008-07-03 14:15 ` Jan Engelhardt
2008-07-03 22:02 ` Jozsef Kadlecsik
2008-07-03 23:02 ` Jan Engelhardt
2008-07-04 0:19 ` James King
2008-07-04 0:37 ` Jan Engelhardt
2008-07-03 15:51 ` Krzysztof Oledzki
2008-07-03 16:07 ` Jan Engelhardt
2008-07-03 16:10 ` Patrick McHardy
2008-07-03 16:14 ` Krzysztof Oledzki
2008-07-03 16:14 ` Jan Engelhardt
2008-07-04 13:47 ` Benny Amorsen
2008-07-04 15:15 ` Henrik Nordstrom
2008-07-03 18:53 ` Patrick McHardy [this message]
2008-07-03 22:21 ` Jozsef Kadlecsik
2008-07-04 20:26 ` Jozsef Kadlecsik
2008-07-03 7:22 ` [PATCH,RFC] Route match, kernel Jan Engelhardt
2008-07-03 16:27 ` Phil Oester
2008-07-03 7:26 ` [PATCH,RFC] Route match, user Jan Engelhardt
2008-07-03 16:29 ` Phil Oester
2008-07-03 16:55 ` Jan Engelhardt
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