Very simple to set up, with two modes actually two uses: 1) Let the flow inside the router is completely shared by 2 or 3 or more ISPs. This is my case: Orange + Free, and there I added the transfer rate. 2) Or any connection or rather activity is done until the end or on the WAN1 or WAN2 or 3 or more, in which case the transfer rate is "shared" by tasks and / or users; NOTE: If a TV stream is used, then put the obligation on the WAN1 ISP.