Date: Mon, 6 Aug 2001 17:52:15 -0700 From: "David Schwartz" <davids@webmaster.com> To: "David Kelly" <dkelly@hiwaay.net>, "Douglas G. Allen" <dallen@roe35.lth2.k12.il.us> Cc: "FreeBSD Stable Listserv" <freebsd-stable@FreeBSD.ORG> Subject: RE: arp doesn't like two NIC's in same subnet on same machine? Message-ID: <NOEJJDACGOHCKNCOGFOMMEDFDAAA.davids@webmaster.com> In-Reply-To: <200108052035.f75KZOx28433@grumpy.dyndns.org>
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> "Douglas G. Allen" writes: > > I have a machine running 4.3-RELEASE, with softupdates enabled. I > > have two I ntel 100 Pro NIC's in the machine, an Adaptec controller > > card, and an 18G Ultra 160 drive in it (running at 80, if it makes any > > difference). I have the default route to the router set to always go > > out through fxp0. When both fxp0 and fxp1 are enabled, I get > > complaints from arp about inquiries going out from fxp0 having > > answers received on fxp1. Everything else 'seems' to be ok. The box > > is running as a web server with each NIC referenced for different > > sites in different DNS A records. > > Is there an easy way to get rid of the arp message? > Two NICs on the same LAN segment is only for the purpose of using two IP > addresses? Why don't you "ifconfig fxp0 alias ..." and use only one NIC? Because then what happens when the network topology changes and the two subnets become physically disjoint? Suppose you have two IP subnets, 216.1.64.0/24 and 216.1.65.0/24. You have machine with two network cards and two IP addresses, 216.1.64.1 and 216.1.65.1. The two subnets might share a physical medium, they might not. You don't know and want a configuration that works either way. DS To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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