Strange kernel messages?

Kevin O'Connor kevin at
Tue Aug 10 12:51:29 BST 2004

>-----Original Message-----
>From: freebsd-users-admin at [mailto:freebsd-users-
>admin at] On Behalf Of Grant
>Sent: 10 August 2004 12:22
>To: Pete French
>Cc: freebsd-users at
>Subject: Re: Strange kernel messages?
>Pete French wrote:
>>>Got a few freebsd servers and i have noticed quite alot of these
>>>messages on the console and in the logs.
>>>arp: moved from 00:c0:4f:26:a8:83 to 00:08:c7:3b:67:93 on fxp0
>>>arp: moved from 00:08:c7:3b:67:93 to 00:c0:4f:26:a8:83 on fxp0
>>>arp: moved from 00:c0:4f:26:a8:83 to 00:08:c7:3b:67:93 on fxp0
>>This is puzzling from your setup. It is implying that both the cards
>>00:c0:4f:26:a8:83 and 00:08:c7:3b:67:93 have IP address
>>But you describe the system like this:
>>>The ip is a proxy/gateway running clarkconnect with dual
>>>network cards one on and one
>>If thats true then the should always be on the same ether
>>address. I wouldnt just ignore these if I were you, I would go and check
>>what is going on with that card.
>The card in the proxy/gateway with ip is: Intel
>Corp. 82557/8/9 [Ethernet Pro 100]
>The second card with ip is: 3Com
>Corporation 3c905B 100BaseTX [Cyclone]
><ifconfig output>
>eth0      Link encap:Ethernet  HWaddr 00:08:C7:3B:67:93
>          inet addr:  Bcast:
>          RX packets:5228683 errors:2 dropped:0 overruns:0 frame:2
>          TX packets:3953717 errors:17 dropped:0 overruns:0 carrier:17
>          collisions:52185 txqueuelen:100
>          RX bytes:2679248839 (2555.1 Mb)  TX bytes:319930805 (305.1 Mb)
>          Interrupt:11 Base address:0xdcc0 Memory:fa000000-fa000038
>eth1      Link encap:Ethernet  HWaddr 00:C0:4F:26:A8:83
>          inet addr:  Bcast:  Mask:
>          RX packets:4138799 errors:2 dropped:0 overruns:0 frame:4
>          TX packets:5619034 errors:0 dropped:0 overruns:0 carrier:15
>          collisions:176994 txqueuelen:100
>          RX bytes:344435555 (328.4 Mb)  TX bytes:2810030644 (2679.8 Mb)
>          Interrupt:12 Base address:0xdc00
><end of ifconfig output>
> From the ifconfig output it shows both cards with only one address
>each, plus i allways thought you cant have move than one card using the
>same IP as it would conflict ?
>Any more ideas on where this problems might lay?
>Thanks again

It's not a fault, there is no problem. In the words of the Hitchhikers Guide
to the Galaxy "Don't Panic"  requests for arp are going through your hub to
a different network and being answered through the NAT gateway via the
internal route, hence the change of MAC address. Do a search on for arp console messages, you'll find your not
alone :) The only worry is the fact that the solution does not seem to
I don't know who's active in this group any more but if Joe is still about
what's the chance of getting an faq page(s) together on the server to help
people out with common problems like this. I'll even volunteer to do the
network ones. I know a search of the old posts is another way of doing it
but faq pages are more user friendly.

More information about the Ukfreebsd mailing list