thanks for the answer. It seems that Checkpoints (based on Nokia Boxes) doesn't form any ospf neighborship to eachother. And when the active router is not DR or DBR, then we got a few troubles to reach devices outside the segment. I found out, that the two nokias does not build up an ospf neighborship to eachother? In the same subnet, there are two Cisco router, which the router see all (both nokias and the other router).
I was looking at your post and wondering why the OSPF doesn´t work. AFAIK, the Nokias (IPSO) natively support OSPF. I am not sure where exactly in Voyager OSPF is configured, and if it is turned on by default, but it should be there. Another possibility is that your Checkpoint is blocking OSPF multicast addresss 188.8.131.52 (all routers), and 184.108.40.206 (DR and BDR), can you check if these are allowed through ?
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