From: "Gáspár Lajos" <swifty@freemail.hu>
To: Netfilter IPtableMailinglist <netfilter@lists.netfilter.org>
Subject: Re: Filtering MAC addresses and Multicast
Date: Wed, 02 Aug 2006 14:12:44 +0200 [thread overview]
Message-ID: <44D096BC.2030102@freemail.hu> (raw)
In-Reply-To: <44D09298.20503@estudiants.urv.cat>
Gerard París Aixalà wrote:
> I tried this.
> And this:
> iptables -t mangle -I PREROUTING -d 225.0.0.4 -j DROP #
> 225.0.0.4 is the multicast address
> iptables -t mangle -I PREROUTING -j DROP
> But the multicast traffic still arrives at the destination computer.
How do you know that the traffic arrives ??? :) If you see it with some
sniffer programs (tetheral) then that is fake because those programs see
the packets BEFORE they reach the filtering system.
You can not tell a packet not to enter your network card... :D
BTW.: What does the counters of the packets matching your rules says ???
(iptables -L -v -n -t mangle)
next prev parent reply other threads:[~2006-08-02 12:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-01 8:35 Filtering MAC addresses and Multicast Gerard París Aixalà
[not found] ` <44CFB3EE.2010007@rtij.nl>
2006-08-02 7:17 ` Gerard París Aixalà
2006-08-02 7:23 ` Martijn Lievaart
2006-08-02 9:40 ` Gáspár Lajos
2006-08-02 11:55 ` Gerard París Aixalà
2006-08-02 12:12 ` Gáspár Lajos [this message]
2006-08-02 16:04 ` Gerard París Aixalà
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