From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: netfilter-devel@vger.kernel.org, kaber@trash.net
Subject: Re: [PATCH 2/3] netfilter: xtables: add PKTTYPE target
Date: Wed, 28 Jan 2009 17:51:56 +0100 [thread overview]
Message-ID: <49808D2C.8080009@netfilter.org> (raw)
In-Reply-To: <alpine.LSU.2.00.0901281707460.20921@fbirervta.pbzchgretzou.qr>
Jan Engelhardt wrote:
> On Wednesday 2009-01-28 15:58, Pablo Neira Ayuso wrote:
>
>> This patch adds the PKTTYPE target which can be used to mangle the
>> skbuff packet type field. This target is useful in conjunction with
>> the arptables mcmangle target to TCP working again when a
>> multicast hardware address is used. An example of its use:
>>
>> iptables -I PREROUTING ! -s 224.0.0.0/4 -t mangle \
>> -j PKTTYPE --to-pkt-type unicast
>
> Are not packets not destined for 224/4 - assuming standard route setups -
> unicast anyway?
Not if you use the mcmangle arptables target to use a multicast hardware
address instead of the normal unicast, in that case, the link layer set
them to PACKET_MULTICAST. Indeed, the only use that I can find for this
target at the moment is to combine it with mcmangle.
--
"Los honestos son inadaptados sociales" -- Les Luthiers
next prev parent reply other threads:[~2009-01-28 16:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-28 14:58 [PATCH 1/3] netfilter: arptables: add mcmangle target Pablo Neira Ayuso
2009-01-28 14:58 ` [PATCH 2/3] netfilter: xtables: add PKTTYPE target Pablo Neira Ayuso
2009-01-28 16:11 ` Jan Engelhardt
2009-01-28 16:51 ` Pablo Neira Ayuso [this message]
2009-02-09 15:13 ` Patrick McHardy
2009-02-09 23:15 ` Pablo Neira Ayuso
2009-02-10 14:03 ` Patrick McHardy
2009-02-10 14:18 ` Jozsef Kadlecsik
2009-02-10 14:22 ` Patrick McHardy
2009-02-10 18:12 ` Pablo Neira Ayuso
2009-02-11 12:26 ` Patrick McHardy
2009-02-11 14:19 ` Pablo Neira Ayuso
2009-02-11 14:35 ` Patrick McHardy
2009-02-11 14:51 ` Pablo Neira Ayuso
2009-02-11 14:54 ` Patrick McHardy
2009-01-28 14:58 ` [PATCH 3/3] netfilter: xtables: add cluster match Pablo Neira Ayuso
2009-01-28 16:07 ` Jan Engelhardt
2009-01-28 16:38 ` Pablo Neira Ayuso
2009-02-09 15:25 ` Patrick McHardy
2009-02-09 23:23 ` Pablo Neira Ayuso
2009-02-09 15:11 ` [PATCH 1/3] netfilter: arptables: add mcmangle target Patrick McHardy
2009-02-09 23:13 ` Pablo Neira Ayuso
2009-02-10 11:16 ` Pablo Neira Ayuso
-- strict thread matches above, loose matches on Subject: below --
2009-02-06 7:41 Pablo Neira Ayuso
2009-02-06 7:42 ` [PATCH 2/3] netfilter: xtables: add PKTTYPE target Pablo Neira Ayuso
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