Im struggling on finding a functional setup for automatic failover/load-balance between ISPs or ‘mangling’ some devices to take one ISP. Because the ISPs are on different Routers at different sites.
I know how to it on a single router but couldn’t find the right method to do it on multiple routers.
This is the current topology:
Right now im only using ISP1 as unique uplink provider. On R2 (Site2) I have a default route to R1. And on R1 static routing to R2 to “know” R2 LANs.
If you know how to do it on single router, what’s the difference here? Your main WAN is connected to ISP and other WAN is the interface with 172.31.94.x, just do what you’d normally do with one router.
i think you are talking about this
https://wiki.mikrotik.com/wiki/Manual:Interface/Gre
Difference is that I don’t know what to do on R2, as said before right now I have a default route to R1 (so it reaches the internet and site1 LANs also). What I mean is that on R2 im not using ISP2, im using ISP1.
Dont know where should actually start
I still don’t see the problem. Even if you currently don’t use ISP2, you have one interface connected to R1 and second interface connected to ISP2, right? If so, it’s exactly what you need for dual-WAN setup. How it differs from one router scenario which you say you know how to set up? I mean, imagine that you have only R2, with one interface connected to ISP2 (10.1.1.1/24) and the other (which currently goes to R1) would be connected to ISP3(*1) (172.31.94.x/30).
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(*1) Let’s call it that to distinguish it from real ISP1.
So essentially I have to do the failover/loadbalancing(pcc/mangle rules) on both routers? i.e on R1 with ISP1 and ‘Interface to R2’. On R2 with ISP2 and ‘Interface to R1’ ?
Yes, I understood your original description like this.