arplookup failed: host is not on local network

Derek Ragona derek at
Wed May 14 18:19:19 UTC 2008

At 06:22 AM 5/14/2008, Christer Solskogen wrote:
>Derek Ragona wrote:
>>Yes aliases should have a netmask of
>Still no go.
> is showing up in "arp -a" and netstat -rn. (and the 
>"arplookup failed: host is not on local network" in /var/log/messages)
>nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         ether 00:18:f3:29:d8:15
>         inet netmask 0xffffff00 broadcast
>         inet netmask 0xffffffff broadcast
>         inet netmask 0xffffffff broadcast
>         media: Ethernet autoselect (1000baseTX <full-duplex,flag0,flag1>)
>         status: active
>Anything else that might explain this kind of behavior?

I would do a traceroute from all your hosts there.  When you do keep an eye 
out for the arp error message.  This should help find the host causing 
these errors and then look at that systems configuration.

Also do you have more than one ethernet interface in the system showing the 
arp errors?  If you do, make sure the interfaces are on different subnets.


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