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From: "Marco Berizzi" <pupilla@hotmail.com>
To: lartc@vger.kernel.org
Subject: [LARTC] shared_media
Date: Mon, 12 May 2003 10:11:33 +0000	[thread overview]
Message-ID: <marc-lartc-105273442117154@msgid-missing> (raw)

Hello everybody.

I have a problem with my firewall rules on my Slackware Linux box 9.0
(kernel 2.4.20-xfs).
This system is configured with 3 NIC (one for the router, one for the
dmz, and the other for the private net).
I have written a firewall (iptables) that is processing packet based
also on the incoming interface.
This firewall is connected in a not good environment where all the NIC
(and the router) are connected to the same switch (don't ask me why).
Here is the problem: an incoming packet from the private net sometimes
is catched by the priv NIC, sometimes is catched by the DMZ nic and
sometimes is catched by router NIC. This happens (I think) because when
a client (windoze) sends an arp request with the priv NIC IP, linux
replies with the MAC address from any of the 3 NIC and not only with the
MAC from the priv NIC.

Is there any setting in /proc to prevent this? shared_media perhaps?

TIA

PS: Please cc me. I'm not receiving messages from this list.
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             reply	other threads:[~2003-05-12 10:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-12 10:11 Marco Berizzi [this message]
2003-05-12 11:22 ` [LARTC] shared_media Varun Varma
2003-05-12 13:25 ` Marco Berizzi

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