From: Robert Nichols <rnicholsNOSPAM@comcast.net>
To: netfilter@lists.netfilter.org
Subject: Re: iptables and mac filtering
Date: Sat, 08 Apr 2006 11:14:44 -0500 [thread overview]
Message-ID: <e18nhl$5pp$1@sea.gmane.org> (raw)
In-Reply-To: <44377281.60706@ratel.ru>
vlad f halilow wrote:
>
> Hi there. Please help with strange issuse. I have debian woody with
> 2.6.12 kernel + iptables.1.3.3. (unstable) under vmware workstation. I
> try to block connection to my PPPoE server (rp-pppoe) by mac-address of
> client. something like
>
> #iptables -I INPUT -m mac --mac-source blablag -j DROP
>
> . Line inserted showed by iptables -L -v -n but not block any IP-less
> requests from address specified. Ping or any IP protocols blocking
> success, but pppoe discovery, exchange and traffic pass the filter
> wthout any problem with no rule countr increment. How i can fix this
> thing? Or what i to do wrong?
You said it yourself. These are IP-less requests. They never make
it up to the protocol levels where iptables operates. Yes, iptables
can match on MAC addresses, but if the packet is handled entirely
at the Data Link layer (MAC sublevel), iptables will never see it.
--
Bob Nichols Yes, "NOSPAM" is really part of my email address.
prev parent reply other threads:[~2006-04-08 16:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-08 8:21 iptables and mac filtering vlad f halilow
2006-04-08 9:39 ` Oleg
2006-04-08 16:14 ` Robert Nichols [this message]
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