IP address list quiz access rule

This plugin works just as usual limitation on IP, but the list of subnets with names (eg, library, local area network, a computer lab, etc.) enters the site administrator. Teachers in tests simply select the required subnet.
Visit admin page to configure IP adress list. When you setup quiz, you may select any named IP list.
Selecting none means that this limitation will not apply. If the administrator changes the subnet,
for example, by adding one more address, it is immediately reflected in
all tests using this subnet.