VPN Bonding

RouterOS General
1

I’m wondering if someone can help me I’m struggling to get my setup working correctly.

Site A
Fibre 1000/100 fixed external ip connection
RB3011UiAS-RM

Site B
20/10 pppoe fixed external ip connection
4g lte 40/20 cgnat no fixed ip connection
RB2011UiAS-RM

What I am trying to do is link and route all traffic to / from Site B thru Site A and bond both connections (with option to add additional connections at a later date if needed) I don’t want to load balance as we need combined download speed at Site B, Site A has sufficient capacity to do this. No matter what I try I can only get the speed of one of the connections not the combined speed.

Thank you in advance for your assistance

2

Instead of trying to bond two completely different connections such as a fixed PPPoE and wireless cellular connection, you may want to consider using pre-routing and mangle rules instead, whereby you have a VPN connection from each WAN with rules about what traffic goes over what connection…

Otherwise, bonding may be possible with EoIP.. you’d still need two VPN (wireguard?) connections between Site A & B, one for each Site B WAN, then EoIP over the top…