
Hi there, MikroTik masters.
I am a small ISP in South Africa. I cater to the individuals who can not receive internet because of issues like, ISP’s who don’t work in the rural areas, and such.
My problem now, however, is that my line capacity is reaching a breaking point, and I am running out of upload speed for my customers.
My setup is as you can see on the image up there.
Black circles represent customers, who connect with wireless to my High Site (Red Circle). The High Sight then connects to my main point (Purple).
From there, the connection runs to my server, a Dell Poweredge 2950, with dual RJ45. I have loaded virtual machines onto the server, which do all the work.
The Mikrotik takes PPP sessions, and send it to the radius, which then authenticates the users, and assigns IP addresses to the PPP session.
Then, as information comes to the MikroTik machine, all traffic except HTTP, gets sent on its way to the WAN IP Address, which is now 111.111.111.110.
All the HTTP traffic, gets sent to the Proxy, which caches the HTTP for me, and then users can access HTTP traffic at connection speed, and not PPP speed.
As stated before, I am running out of upload speed, as Fibre Optic is not yet available over here. So, my only option now, is to implement a loadbalancing system.
Basically, this is what I need

I have an RB750UP. The LAN Ip address must be 111.111.111.110, as both the Proxy and Mikrotik(inside the server) would be looking for the specific IP Address.
I intend on using Port 1 as the LAN port.
Ports 2 to 5 must then be able to do the dial-ups, and natting.
I do not yet have 4 WAN connections available, but they will come, and when the time is right, I will implement them, hopefully with minimal effort.
*I have connection speeds available of up to 20Meg/Sec Down, with 1Mb/sec Upload, from my ISP.
*I only offer up to 4 Meg/sec down to my customers.
Any queries are more than welcome.
Much appreciated
Joker