Настройка GRE моста между двумя Mikrotik

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The goal of this example is to get Layer 3 connectivity between two remote sites over the internet.

Site-to-site GRE

We have two sites, Site1 with local network range and Site2 with local network range

First step is to create GRE tunnels.
Router on site 1:

Router on site 2:

As you can see tunnel configuration is quite simple.

Note: In this example keepalive is not configured, so tunnel interface will have running flag even if remote tunnel end is not reachable

Now we just need to set up tunnel addresses and proper routing.

Router on site 1:

Router on site 2:

At this point both sites have Layer 3 connectivity over GRE tunnel.