[ILUG] ARP Insanity!

[Paul Jakma]

On Tue, 21 Feb 2006, Nick Murtagh wrote:

> I've moved an IP address from server A to server B.
>
> Server A is still responding to ARP requests for the IP address!

>    link/ether 00:14:22:b0:5e:80 brd ff:ff:ff:ff:ff:ff

> From a third machine:

> # arping 10.2.1.230
> ARPING 10.2.1.230 from 10.2.1.22 eth0
> Unicast reply from 10.2.1.230 [00:14:22:B0:5E:80]  0.833ms
> Unicast reply from 10.2.1.230 [00:20:ED:79:2F:70]  0.920ms

> Any ideas? I must be missing something obvious...

Try a gratuitious ARP:

 	arping -b -s 10.2.1.22 -I <iface> 00:20:ED:79:2F:70

regards,
-- 
Paul Jakma	paul at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
Have at you!