Cisco Clean Access & Impulse Point...

[Mark Staples <mstaples () MAIL MCG EDU>]

Anyone pilot both CCA and Impulse Point (http://www.impulse.com/)?
Impulse Point was designed for higher ed and is priced very
attractively.  So far, we've only seen presentations and nothing live.

Any feedback would be great.

Mark

-----
Mark Staples
Director of Information Security/Chief Information Security Officer
IT Research Liaison
Medical College of Georgia
Office: 706-721-1577
mstaples () mcg edu

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> > > franklin () TXSTATE EDU 07/14/05 3:13 PM >>>

This is a response from our network lead who implemented CCA a month
or
so ago:

I got tired of trying to keep up with the IP's used for windows
update.
Using the host names is much better, but even then it's a moving
target.
Microsoft sometimes adds new sub domains and in the latest version of
the update page it's a url under microsoft.com.

We are allowing traffic to everything ending in microsoft.com and
g.msn.com. That way the updates always work (so far) and students can
search for and download patches manually. There are cases when windows
update claims that a machine is fully patched but it is still missing
something. The helpdesk can tell what's missing from the reports and
the
student can search for KBxxxx and download and install it manually.

Anders Engle
Systems Programmer I
Texas State University

-----Original Message-----
From: Flagg, Martin D. [mailto:FlaggMD () HIRAM EDU]
Sent: Thursday, July 14, 2005 1:13 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Windows Updates and Cisco Clean Access


We are implementing Cisco Clean Access (formally Perfigo).  It has
gone
really well but we keep coming up with problems with Windows Update,
it
fails because CCA is blocking the IP.  When this happens, I use a
sniffer and add the new IP address that Microsoft is using and then it
works, until they change address's again.  Cisco says use the Host
setting allowing requests that end in "update.microsoft.com".  This
does
not always work.

I am really at a loss because it works for 95% of the machines but I
can
not afford to have 5% of the students in my office when they get back
from the summer.

Any Ideas?

Martin Flagg
Hiram College

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