[unisog] Computer Registration

Steve Bernard sbernard at gmu.edu
Wed Jun 12 14:50:18 GMT 2002

Using OOB management on all core routers/switches, we are able to quickly
consolidate ARP tables across the enterprise.

OOB == GOOD (for the most part)


-----Original Message-----
From: Ben Curran [mailto:bdc1 at humboldt.edu]
Sent: Friday, June 07, 2002 1:34 PM
To: Paul Schmehl
Cc: unisog at sans.org
Subject: Re: [unisog] Computer Registration

> How do you apply this with hosts across subnets?

Not sure what you mean here.  We're moving toward dynamic
addressing for all hosts except servers and printers.  All
wireless hosts *are* dynamic, so they can roam subnets

Hey Paul,

Just re-read my reply, and now I'm wondering what I meant. That's scary!
Guess I was thinking that you had somehow automated the MAC address database
via ARP lookups as some others have intimated. --- which obviously wouldn't
across subnets unless you learn on every router/layer-3 switch interface.
Unlike the
netreg software, where you glean MAC addresses from the DHCPDISCOVER
packets. (which will work across subnets) I never saw the word "automated"
mentionned. There I go for thinking!

But another question:
Do you staledate old MAC address entries?

And....If so, what method do you use to generate lists of "old" HW
addresses? Do you
delete unused MAC entries that are x days old?

Ben Curran

Network Specialist and General Factotum
Humboldt State University
c/o Telecommunications & Network Services
1 Harpst St. Arcata, CA 95521
Phone: (707)826-5000
FAX: (707)826-6161
Email: bdc1 at humboldt.edu

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