Why does OSPF behave so strangely on Mikrotik?

Question

Mikrotik

Hey guys.
Configured OSPF between three Mikrotiks (..101.1, ..102.1 and ..103.1). They are interconnected by a triangle through eoip.
Between 102.1 and 103.1 routes are transmitted perfectly, but between 101.1 and any other two - not.
The settings are the same on the three routers (only the registered networks and RouterID differ).
The problem manifests itself in the fact that routes between 101.1 and 102.1 / 103.1 appear and disappear immediately (at the same time, the State Changes counter in the Neighbors section grows rapidly on 101.1.
In the logs on 101.1, it constantly writes:
Database Description packet has init bit set in middle of an exchange
OSPFv2 neighbor 192.168.255.103: state change from Full to 2-Way
Database Description packet has init bit set in middle of an exchange
OSPFv2 neighbor 192.168.255.102: state change from Full to 2-Way

Tell me where to look. I will send the information that you request for help.

Answer 1

Try this:
on 101.1
Add neighbors to nbma-neighbor
/routing ospf nbma-neighbor
add address=192.168.255.103
add address=192.168.255.102
- I understood correctly - is this your IP EOIP tunnel to the neighboring microtic?
Next, write the EOIP interfaces in:
/routing ospf interface
add interface=(eoip interface up to the second microtic) network-type=nbma
add interface=(eoip interface up to the third microtic) network-type=nbma
i.e. explicitly indicate - at what address to look for mikrotik neighbors