From owner-freebsd-questions Thu Feb 15 10:05:15 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id KAA12553 for questions-outgoing; Thu, 15 Feb 1996 10:05:15 -0800 (PST) Received: from Glock.COM (root@glock.com [198.82.228.165]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id KAA12546 for ; Thu, 15 Feb 1996 10:05:10 -0800 (PST) Received: (from mmead@localhost) by Glock.COM (8.7.3/8.7.3) id NAA19476; Thu, 15 Feb 1996 13:04:31 -0500 (EST) From: "matthew c. mead" Message-Id: <199602151804.NAA19476@Glock.COM> Subject: Re: proxy ARP on ethernet?? To: msmith@atrad.adelaide.edu.au (Michael Smith) Date: Thu, 15 Feb 1996 13:04:31 -0500 (EST) Cc: kmitch@vt.edu, questions@freebsd.org In-Reply-To: <199602150417.OAA20301@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Feb 15, 96 02:47:40 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org Precedence: bulk Michael Smith wrote: > Keith Mitchell stands accused of saying: > > I can't seem to get proxy ARP to work on a system that has two ethernet > > interfaces in it (only one ip address though). I want this machine to be > This is an illegal configuration. You will have to use different nets (or > subnets) on each interface. You should be able to set it up so that you only have to use different *IP addresses* on each interface. FreeBSD should then forward packets between the interfaces if you've built your kernel with the GATEWAY options. If you setup in this way, you will probably have to build arp tables for all hosts on the local subnet that the two hosts connected to ether1 want to get to. Also, unless you want people to see your system with the two interfaces as a router, you'll need to go in and change the kernel code so that it does not decrement the TTL value of packets it passes. -matt -- Matthew C. Mead mmead@Glock.COM http://www.Glock.COM/~mmead/