Internet Traffic Monitor Software Internet traffic monitor software (a.k.a. Internet access monitor software) is a software that uses Internet monitoring technologies to monitor internet usage and block inappropriate internet activities.

Two Internet Monitoring Technologies
Internet traffic monitoring software (a.k.a. Internet access monitor software) can use two different Internet monitoring technologies to monitor internet usage: Passive and Active.

Passive Internet Monitoring Technology (a.k.a. Pass By)
This an Internet monitoring technology that will not require to change network infrastructure/configuration and client PC. This internet monitoring technology does not pose an additional delay and bottleneck for the network.

Active Internet Monitoring Technology (a.k.a. Pass Thru)
This is an Internet monitoring technology that may require an additional layer on the network configuration that behaves like a gateway. This internet monitoring technology will pose an additional delay and bottleneck for the network.

Note that 2Watch Internet Filter (Web Filter) uses Passive Internet monitoring technology