two ADSL lines with one router.

Hello,
I have 10mbps ADSL internet and I am distributing it using Mikrotik router with RouterOS to several users using Hotspot user account. Each user has different speed but no one has more than 1mbps. I have several users and 10mbps is not enough and it is the maximum speed available in my area. However, I can buy another 10mbps ADSL and another modem but I don’t want to have two different LAN networks.

If I set two port to be WAN, is the router is smart enough to distribute the users to different WAN port? OR can I force some user to use one of the WAN and the other to different one?

Notes
-I have RB 450 with L4 license
-Both two wan connection can be with different static IP since I set the PPPoE for both line on the modem.

will this works http://wiki.mikrotik.com/wiki/Load_Balancing_over_Multiple_Gateways

but I also have IP to outdoor hotspots that is connected to the router LAN ethernet ports.

another problem is that User get IP from DHCP before they login to their account.

PCC (http://wiki.mikrotik.com/wiki/PCC) works better.

Search the forums for “PCC hotspot” to find configuration examples.

if I have 20mbps and download a file at full speed, will I get 20mbps?

Well, yes. PCC stands for “per connection classier”. Since an HTTP or FTP download is one connection, that connection will go out one circuit and potentially get the full speed of that circuit.

I mean if I have two 10mbps WAN, will I get 20mbps if I am using internet download manager?

Possibly, if PCC decides to use different circuits for the different virtual TCP circuits the download manager starts.

PCC is not link aggregation, though. Link aggregation can only be done if you have control over both endpoints or get the circuit provider involved.