Thanks, Priscilla. I did some testing yesterday and discovered the same
two-minute timeout. however, I also have some Solaris boxes that will
be affected by this and Sasa Milic mentioned that these might retain the
old ARP entries. If so, we'll just have to manually clear the ARP
caches. It
the router from that network, that might be an option
as
well.
- Original Message -
From: John Neiberger
To:
Sent: 19 August 2002 5:13 pm
Subject: How to force a gratuitous ARP [7:51674]
I'm planning on moving routing responsibilities from a router to our
6513 and I *really* need
I just tried this and it appears that the behavior is a little different
on routed virtual interfaces on the 6513. I'm running 12.1(11) IOS and
with debug arp turned on I didn't see the duplicate IP test or the
gratuitous ARP.
Or, I'm just blind and I don't see it but I've run the test several
I don't think it's quite right that the routers send their ARP broadcast
replies when you simply do a shut/no shut. From the testing I have doen,
they don't even seem to do this if you physically disable and enable the
interface by removing and reinserting the cable. They only do this on a
Been awhile since I've read this list, but saw this posting and figured I'd
offer an alternative way of looking at this. I can recall a time when I had
to make a move just like this, without knowning what the mix of devices was
on that L2 network. If you don't need the original router for
I'm planning on moving routing responsibilities from a router to our
6513 and I *really* need to minimize downtime. I'll be moving an
interface IP address from one device to another and this is the default
gateway for all devices on that network. The problem is that all
devices on that subnet
Can you stand 2 minutes of downtime? What are these devices on the subnet?
If they are Windows machines, you may not have a problem. Just take 2
minutes to make your change and the entry for the default gateway will be
gone from the devices' ARP cache! The timeout for ARP entries for Windows is
.
- Original Message -
From: John Neiberger
To:
Sent: 19 August 2002 5:13 pm
Subject: How to force a gratuitous ARP [7:51674]
I'm planning on moving routing responsibilities from a router to our
6513 and I *really* need to minimize downtime. I'll be moving an
interface IP address from one device
scanners and other script
kiddie toolkit favorites.
- Original Message -
From: John Neiberger
To:
Sent: 19 August 2002 5:13 pm
Subject: How to force a gratuitous ARP [7:51674]
I'm planning on moving routing responsibilities from a router to our
6513 and I *really* need to minimize
9 matches
Mail list logo
