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Re: multihomed resnet users

daemon@ATHENA.MIT.EDU (Mike Smith)
Tue Mar 12 16:46:45 2002

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Message-ID:  <5.1.0.14.2.20020312163952.0366ee90@mailstore.bgsu.edu>
Date:         Tue, 12 Mar 2002 16:42:18 -0500
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: Mike Smith <msmith@BGNET.BGSU.EDU>
To: RESNET-L@listserv.nd.edu
In-Reply-To:  <71F49580D990534385198EE571135700936E37@rainbow.evergreen.e du>

Here at Bowling Green, Time Warner recently upgraded their CATV to a
digital system and it was specifically included in the contract that they
were not allowed to offer cable modems on campus because of the multihoming
issues.

Thanks
-Mike

At 10:43 AM 3/12/2002 -0800, McHugh, Noel wrote:

>Is anyone having issues with rooms connected to Resnet via ethernet and an
>outside internet connection like a cable modem or DSL?
>
>Our internet connection is no longer the fastest service
>around.  Evergreen housing residents who want faster internet connections
>are signing up for cable modems, which seems reasonable to me as it makes
>them happy and gets traffic off Resnet.  However some people in our campus
>IT department are very nervous about the possibility of a multihomed
>machine in Resnet circumventing the campus firewall.  Resnet is a network
>segment inside our campus firewall so students can access file shares on
>student use servers in our labs, but the segment can't access our
>administrative db servers.  I don't want to move Resnet outside the
>firewall as that would cut off access to machines in the labs.
>
>I've updated our RUP to prohibit multihomed devices, but that doesn't make
>our administrative IT folks feel much better.  I'm not even sure how to
>detect a multihomed machine on our network, the only one we've found so
>far was easy to track down as it was also a rogue dhcp server.  Any advice
>is greatly appreciated.
>
>Thanks,
>
>Noel McHugh
>Housing Technology Manager
>The Evergreen State College
>resnet.evergreen.edu


========================
Mike
Smith

Network
Administrator

Information Technology Services
Bowling Green State University
Email:msmith@bgnet.bgsu.edu
Phone (419) 372-9510

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