Date: Sun, 16 Apr 2000 21:28:01 -0400 From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com> To: miy <miyako@sakr.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: network replies causing system messages flooding Message-ID: <20000416212801.C48499@cc942873-a.ewndsr1.nj.home.com> In-Reply-To: <Pine.BSF.4.10.10004160112380.411-100000@sakr.net>; from miyako@sakr.net on Sun, Apr 16, 2000 at 01:22:06AM -0400 References: <Pine.BSF.4.10.10004160112380.411-100000@sakr.net>
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On Sun, Apr 16, 2000 at 01:22:06AM -0400, miy wrote: > > I originally had a windows box [10.0.0.2] connected to my cable connection > through a FreeBSD gateway running natd. I recently added a second windows > box to the network, and I it connects properly to the gateway, but I am > getting flooded by the following system message: > > arp: 10.0.0.4 is on ed1 but got reply from 00:80:c8:e8:ea:d7 on rl0 > arp: 10.0.0.4 is on ed1 but got reply from 00:80:c8:e8:ea:d7 on rl0 > arp: 10.0.0.4 is on ed1 but got reply from 00:80:c8:e8:ea:d7 on rl0 > arp: 10.0.0.4 is on ed1 but got reply from 00:80:c8:e8:ea:d7 on rl0 > > My natd configuration is as follows: > /sbin/natd -s -n rl0 -redirect_port tcp 10.0.0.2:2121 2121 > /sbin/ipfw add 1000 divert 6668 ip from any to any via rl0 > /sbin/ipfw add 1002 divert 6668 ip from 10.0.0.2/24 to any via rl0 > > > #10.0.0.4 is the most recent windows box that was added to the network. Well, if it weren't for the fact that you say that the 10.0.0.4 host is on your net behind the NAT gateway, I would think that you connected the 10.0.0.4 machine on the rl0 interface. Just to be safe, how do you have the network physically configured? You don't have both NICs on the gateway plugged into one hub or something like that, right? It could be that someone else on your cable LAN is leaking RFC 1918 addresses, and they make it over the modem to your machine. The modems should not do that, but the idea of a poorly configured ISP, even a coax cable one, never shocks me. Out of curiosity, what is the point of rule 1002? -- Crist J. Clark cjclark@home.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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