I recently installed second ISP line, both are the same speed, 512Kbps/256Kbps. I already tried to do PCC Load Balancing, and it is just good enough, for download using IDM and torrent.

I know to achieve full speed (1Mbps), I need to bond the Internet connection using remote server that has double my current bandwidth. However, there are no guide or some small guidance to do this on both side.

I already purchased a VPS, and already tried to setup a VPN Server (SSTP using Softether), but I only understand to do until that part. I don't know how to setup bonding on my Mikrotik 951G and actual bonding on my VPS.

Can someone give me some guidance how to do it? Both ISP is NAT-ed, so I don't have public IP address, and on the same subnet and gateway (same ISP).