Re: [PATCH 2/3] netfilter: xtables: add PKTTYPE target

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Patrick McHardy wrote:
> Jozsef Kadlecsik wrote:
>> On Tue, 10 Feb 2009, Patrick McHardy wrote:
>>
>>> Yes, I know, I'm just wondering why you're using TCP at all for
>>> synchronizing. Its not for traffic from the Internet I assume
>>> since the node it ends up on is unknown to the outside anyways.
>>
>> No, that's not the syncronizing traffic, but the "normal" TCP traffic
>> to be filtered by the firewalls, which have got multicast MAC
>> addresses on their interfaces.
> 
> Multicast traffic is accepted for forwarding just fine, its just
> local TCP delivery thats refusing it. So it can't be forwarded
> traffic.

You usually have some administration facility (like ssh) that would
break. Please, think that this can be also used to replace CLUSTERIP (to
be used in back-end servers, not only stateful firewalls).

-- 
"Los honestos son inadaptados sociales" -- Les Luthiers
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