Configure VLANs on D-Link switch..

Hi,

In a school scenario we have some D-Link DGS-1216T switches. An emulator of the webinterface of this switch can be found here:

We would like to use this switch as one of the LAN distributors to the different classrooms in our schools. The domain controller / file server is connected to port #15 and an internet connection is connected to port #16. Classroom A is connected to port #1 and #2, classroom B is connected to port #3 and #4 and so forth.

The clue is that we need to be able to switch the internet connection to each classroom ON and OFF independently. With the exception of port #16 all ports shal be connected to each other (and to the domain controller on port #15)just like a dumb switch. However we want to be able to control via the web interface which classroom(s) that should be granted access to the internet (port #16). This can be controlled with the VLAN feature, but I don't know how to do this with this switch.

I imagine that we need to create a VLAN of port #1 and #2 and call it Classroom_A, same for port #3 and #4 and call it Classroom_B etc.. Then we need to be able to check or uncheck Classroom_A's access/connection to port #16 (internet).

Can anyone familiar with VLAN switches open the emulator URL above and describe how to do this...?

Thanks a *lot* if someone has a few minutes...

best regards

Geir