I have the following topology::
Mikrotik1 (951G-2HnD) (192.168.0.2) => ISP Router A (120/6mbit) ------------------ ISP Router B (50/50mbit) <= HAP AC (10.1.0.x)
ISP Router A can be configured to forward UDP/TCP ports, no DMZ option.
ISP Router B is more advanced, has DMZ, although I'd prefer not to use it.
I already have OVPN and SSTP working with Mikrotik1 being the server,
My issue is: I need to transfer gigabytes of data from B to A, but TCP connection BW between the two, maxes at about 2.5mbit (of 50 available)
Curiously, Mikrotiks bandwidth test shows drastically different results for TCP/UDP over VPN connections.
UDP maxes at about 30mbit, TCP ten times less.
In the past, I was using PPTP connection for file transfers and it was maxing at 30-40mbits. But back then Mikrotik1 was directly connected to the public internet, it stopped working after I got new ISP router. (I guess GRE packets do not get through?)
For large file transfer, there are no concerns about securiy.
Question: what is the fastest VPN connection applicable to the above topology supported by Mikrotik today? Could you poke me with RTFM on how to set it up?