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Date: Tue, 26 Feb 2008 15:30:00 +0100
From: Erik Norgaard <norgaard@locolomo.org>
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Cc: freebsd-questions@freebsd.org
Subject: Re: ARP Messages
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Mächler Philippe wrote:

> I have some strange messages on a FreeBSD 5.4 Server
> The system has a private ip on bge1 and a public one one bge0
> 
> Every 2-3 seconds i get an entry like these...
>> arp: 80.242.192.81 is on bge0 but got reply from
> 00:19:bb:25:7b:63 on bge1
> Routing tables
> 
> Internet:
> Destination       Gateway           Flags  Refs     Use Netif Expire
> default          80.242.192.65     UGS    0    6885962 bge0
> 80.242.192.64/26 link#1            UC     0          0 bge0
> 80.242.192.65    00:00:0c:07:ac:01 UHLW   1          0 bge0    481
> 80.242.192.80    00:0e:7f:fe:10:3f UHLW   0        229 lo0
> 80.242.192.81    00:19:bb:25:7b:63 UHLW   0     179281 bge0   1027
> 127.0.0.1        127.0.0.1         UH     0     277552 lo0
> 192.168.2        192.168.3.254     UGS    0       8209 bge1
> 192.168.3        link#2            UC     0          0 bge1
> 192.168.3.222    00:0e:7f:fe:40:c2 UHLW   0       7283 lo0
> 192.168.3.254    00:a0:8e:77:9a:b9 UHLW   1          0 bge1    521
> %
> 
> Has anybody an idea why i get these messages? Or how i can find
> out where they come from?

It appears you've got more wierdness: why is 80.242.192.80 on lo0? 
according to your ifconfig this is on bge0.

What have you enabled of bridging? firewall? static routes set in rc.conf?

Cheers, Erik