From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin A. Brown" Date: Mon, 03 Feb 2003 17:43:26 +0000 Subject: Re: [LARTC] Double gateway - Two interfaces to same subnet Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Oliver, The reason that arp_filter is not working for you is as follows (let's tell a little story about an inbound ARP requset): - inbound ARP request received on ethernet interface(s) - kernel realizes it's for a locally hosted IP - it looks up the requestor's IP in its routing table - it responds with the link layer address of the interface through which it would route IP packets to this requestor I probably mislead you last week by suggesting that arp_filter was a good solution for your particular need. Although it is one of the solutions for ARP flux, it won't work for your case because of the route lookup incurred by arp_filter. Sorry for the lack of clarity on this point in my previous post, Oliver. As for your ip arp compilation problem....did you patch your kernel, as well? http://www.linuxvirtualserver.org/~julian/arprules-2.4.18-2.diff The ip arp userspace utility has to have something in the kernel to talk to!! :) : ... and am I on the right way to solve my initial problem 'two : interfaces on the same subnet?' Absolutely. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/