Date: Thu, 14 Nov 1996 17:09:53 +0200 (IST) From: Nadav Eiron <nadav@barcode.co.il> To: Seppo Kallio <kallio@cc.jyu.fi> Cc: freebsd-questions@freebsd.org, Seppo Kallio <kallio@cc.jyu.fi> Subject: Re: arp info overwritten Message-ID: <Pine.BSF.3.91.961114170818.2503A-100000@gatekeeper.barcode.co.il> In-Reply-To: <Pine.NEB.3.92.961114141254.10828A-100000@silmu.cc.jyu.fi>
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On Thu, 14 Nov 1996, Seppo Kallio wrote: > > I am getting these error messages and it seems that it the connection to > the ip-number (usually a DOS micro with NCSA Telnet) is lost from our > FreeBSD 2.1.5 server. > > 1. I assume the error is in network gateway unit at 00:00:0c:15:e7:0d > 2. Can I somehow solve the problem in the FreeBSD box by adding some > routing info or something. > 3. Can I dissable this overwriting somehow? How? > > This problem and error message appears only in the FreeBSD nodes, not in > Solaris, Linux, HP/UX etc. as far as I know. > > Nov 14 12:00:01 silmu /kernel: arp info overwritten for 130.234.137.43 by > 00:00:0c:15:e7:0d > Nov 14 12:00:30 silmu /kernel: arp info overwritten for 130.234.137.43 by > 08:00:07:94:74:83 > Nov 14 12:01:28 silmu /kernel: arp info overwritten for 130.234.137.46 by > 00:00:0c:15:e7:0d > Nov 14 12:01:55 silmu /kernel: arp info overwritten for 130.234.141.6 by > 00:a0:24:67:9a:e4 > Nov 14 12:05:23 silmu /kernel: arp info overwritten for 130.234.138.11 by > 00:00:0c:15:e7:0d > Nov 14 12:05:23 silmu /kernel: arp info overwritten for 130.234.138.11 by > 00:00:c0:d3:6f:a3 These messages are very plain: You have *two* nodes who claim to have an IP address of 130.234.138.11, one with a MAC (ethernet) address of 00:a0:24:67:9a:e4, and the other with a MAC address of 00:00:c0:d3:6f:a3. Find out where those nodes are, change the IP address on one of them, and those messages should go away. > > One network guru here is explaining the gateway unit is sometimes > answering too fast to the caller or something, faster than the FreeBSD > node. > > > Seppo Kallio > U of Jyvaskyla > Finland > > Nadav
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