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From: Felix von Leitner <felix-kernel@fefe.de>
To: linux-kernel@vger.kernel.org
Subject: /proc/sys/net/ipv4/config/eth0/arp_filter not working?
Date: Tue, 9 Dec 2003 15:58:47 +0100	[thread overview]
Message-ID: <20031209145847.GA10652@codeblau.de> (raw)

Hi!

I'm having trouble with the Linux kernel answering ARP requests it
shouldn't answer.

In particular, I have added the IP 10.0.0.23 to lo using ip from
iproute2.  On another machine, I have added the IP 10.0.0.23 to eth0
using ip.  Now, an ARP request from a third machine is answered by both.

According to the documentation I found, the kernel (2.6.0-test11) should
not answer ARP requests for the lo alias if I write 1 to
/proc/sys/net/ipv4/config/eth0/arp_filter, and to be on the safe side, I
also wrote 1 to /proc/sys/net/ipv4/config/lo/arp_filter.  However, the
kernel still answers the ARP requests.

Any takers?

Felix

             reply	other threads:[~2003-12-09 14:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-09 14:58 Felix von Leitner [this message]
2003-12-09 19:15 ` /proc/sys/net/ipv4/config/eth0/arp_filter not working? Jose Luis Domingo Lopez
2003-12-09 19:39 ` David S. Miller

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