[GLLUG] Arp warnings

[Melson, Paul]

If you run `arp -a` which device has the record for that IP address?

Perhaps try clearing the ARP table.  Cisco makes it nice & easy (`clear arp`), but I think for BSD/Linux you've got to use something ugly like `arp -a | awk '{ print $1 }' | xargs arp -d` to avoid doing it all by hand.

PaulM

-----Original Message-----
From: Scott Overfield [mailto:soverfield@gccmha.org]
Sent: Wednesday, February 13, 2002 12:58 PM
To: 'Brad Fears'; Linux-User (linux-user@egr.msu.edu)
Subject: RE: [GLLUG] Arp warnings


65.x.x.x 255.255.255.224, 172.x.x.x, 255.255.255.0

-----Original Message-----
From: Brad Fears [mailto:fearsb@michigan.gov] 
Sent: Wednesday, February 13, 2002 1:08 PM
To: linux-user@egr.msu.edu; soverfield@gccmha.org
Subject: Re: [GLLUG] Arp warnings


What IP addresses/netmasks did you assign to 'xl0' and 'xl1'?  The routed
deamon won't route packets if both nics are on the same subnet.

--Brad Fears

>>> Scott Overfield <soverfield@gccmha.org> 02/13/02 11:46AM >>>
Good Mornong,
Yesterday I set up a dual-homed freebsd box as an internal firewall between
2 subnets on my LAN....this morning when I came in, the console was full of
messages like this: arp: 172.16.0.1 is on xl1 but got reply from
00:04:76:bc:0e:ec on xl0.... Any ideas?

********************************************
Scott Overfield
Network Administrator
Gratiot County Community Mental Health
989-466-4109
soverfield@gccmha.org 


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