Refreshing ARP cache
- From: Andreas Höschler <ahoesch@xxxxxxxxxxxx>
- Date: Mon, 24 Sep 2007 11:10:12 +0200
Hi all,
we are getting a new router today. Since the MAC address of the router
will change I don't expect routing to work immediately after replacing
the router. I know the ARP cache can be shown with
arp -a
and that we can manually delete the entry for the router with "arp -d
<hostname>". However, this can only be done as root and nobody with
root privileges will have access to the machine after the router was
replaced (until routing works again). Can I write a script that can be
called by a non-root user to do that? How long will it take for the arp
cache to get aware of the new MAC address if we do nothing and simply
wait?
Thanks,
Andreas
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