Subject: Re: Unexpected ARP messages on console
To: None <netbsd-users@netbsd.org>
From: Donald J. Armstrong <donnie@cross-works.com>
List: netbsd-users
Date: 10/06/2003 11:24:20
>>Hello,
>>
>>I've posted to OBSD's mail list and noone answered. I hope someone
here=20
>>can help.
>Yes, I've seen that with linux forever. It appears that it is sending
arp packets on the wrong interface... I am just ignoring them, they
>have not bothered me enough to do something about it.
>christos
That is such a bummer. The console arp messages are annoying enough for
me to remove the default route on the [rh 8.0] box. Once I remove the
route on [rh 8.0], the console messages are gone, but no internet. =20
BTW, the default route on [rh 8.0] was to the internal interface. That
way it's traffic was firewalled. =20
>>I have a obsd box running nat/fw, two nics an ipf.
>>internal =3D "xl0" plugged into LAN switch
>>external =3D "xl1" plugged into DMZ hub
>>
>>Also a linux webserver (forward off, only port 80 on eth1) internal =
=3D
>>"eth0" (HWaddr 00:E0:29:88:EE:3E) plugged into LAN switch (same as
xl0)
>>External =3D "eth1" plugged into DMZ hub (same as xl1)
>>
>>It appears that the Rh box is arping the internal nic on the external=20
>>subnet. Probably a routing problem.
>>
>>How to stop the messy console arp messages? (besides turning off rh
>>8.0):
>>arp: attempt to add entry for 67.95.33.44 on xl1 by 00:e0:29:88:ee:3e=20
>>on xl0 Oct 3 17:08:23 fw last message repeated 6 times Oct 3
17:10:08=20
>>fw last message repeated 11 times Oct 3 17:20:13 fw last message=20
>>repeated 42 times
>>
>> internet
>> |
>> |
>> ----------------------------
>> - DMZ HUB -
>> ----------------------------
>> ^ ^
>> | |
>> [xl1] [eth1]
>> ------------ ------------
>> - obsd - - rh 8.0 -
>> ------------ ------------
>> [xl0] [eth0]
>> | |
>> v v
>> ----------------------------
>> - LAN Switch -
>> ----------------------------
>> =20
>>Thx,
>>
>>Donnie Armstrong
>>armstrong@cross-works.com