Hi.
We use a Mikrotik RB2011 as a company router. The router is setup to handle two internet connections, one main and one backup. The selection of the two gateways is managed automatically by different “distance” values. Works nicely. The IPv4 range is 192.168.1.xx.
Additionally we manufacture a bridge system with the Sextant G 5xxxx devices. These devices are programmed (configured) in the same switched network where the router is used. As usual the new device has the default config by Mikrotik with an IP of 192.168.88.1. For purposes of configuration via ftp/tenet/ssh one computer in the network is configured with an alias adress of 192.168.88.2 (in addition to it’s default IP address in the 192.168.1.x range).
Now the issue:
Whenever I plug in a new Sextant G5 to configure it, our company router acquires a new dynamic route to 192.168.88.1 in the routing table. Since this new route has a distance of 1 (one) this becomes the new default route. Since this route is a dead end all internet access comes to a halt and my colleagues start screaming at me. I would like to stop the screaming 
My question:
How do I prevent the RB2011 router from acquiring a new dynamic route, just because another device becomes reachable in the same switching network. How is this even discovered?
many thanks.
Ekki
