Whats the differens between Active and Passive?
Passive is a lot easyer to setup then Active,
only Passive has some drawbacks.
First, as Passive user you can only download from Active users.
As Active user you can download from Passive and Active users.
Second, as Passive user you can not more then 5 search results per users.
Also for the hub are Passive users a drawback, Passive users cost more internet speed.
As Active user you can download from everyone and you don't have a limit with the search.