Re: Internet only in selected classrooms



I hope this is a school project and not a real world problem. Re-design this
and make it administratively easy for you and transparent to the end user.
Use a proxy server to control the internet access. You're trying to separate
"policy" by using a switch and dual connections to the access layer, always
a bad idea.


"Geir Holmavatn" <geir59@xxxxxxxxx> wrote in message
news:uMys1lOyGHA.4392@xxxxxxxxxxxxxxxxxxxxxxx
Hi,

All our classrooms need continous access to the student's domain
controller (with DHCP, DNS etc...), and in addition, internet access
*only when needed*.

How can we avoid connecting ALL classrooms to the internet once the
gateway cable is connected to the domain controller net in one of the
classrooms?

The router / firewall IP is on the same subnet as the domain controller.
A small sketch of a similar system is available here (with separate
switches for internet and domain controller):

http://www.kuntigi.net/download/ClassroomLAN.jpg

Connecting / disconnecting the internet for classrooms would be by
connecting /disconnecting the blue connection in each classroom in the
above sketch.

I'm aware that this could probably be achieved by setting a gigabit
router in the domain controller cable for each classroom, but I hoped to
avoid the cost of this. The sketch' 'Domain controller subnet switch'
is a Linksys SRW2016.

Thanks if someone have some bright ideas and suggestions ;-)

/geir


.



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