OSPF Problem RB1200 - VERY WEIRD

RouterOS Forwarding Protocols
1

We are running RouterOS 5.2 level 6 on a RB1200 Firmware 2.33

The RB1200 is connected directly by a UTP cable to a RB1100AHx2 (this is the core router)

We are running OSPF in the entire network, and in normal operation RB1200 talks OSPF with RB1100, they recognize each other as neighbors, exchange LSAs, and stablish adjacency… So RB1200 lerns all routes to reach all networks.

The problem begins after a power failure (all equipment reboots). Then RB1200 starts ok but OSPF fails. RB1200 sees RB1100 as a neighbor but doesn´t stablish the adjacency, so doesn´t learn any routes.

We know the problem is the RB1200, because RB1100 stablish adjacency with other RBs in other interfaces (RB493 and RB450).

The only way we found to solve this, is reseting RB1200 to System Default and reconfiguring in first place interfaces and IPs, then OSPF, and last the rest of the configuration.

On RB1200 We have tried rebooting, uncofiguring OSPF and reconfiguring it, but nothing happens.

Any idea?

2

5.2 ? It is old, try 5.22

3

Welcome all!
I have a problem on the network using OSPF with Mikrotik RB1100AHx2.
There are two border routers, cisco switches and Mikrotik RB1100AHx2, v 5.22, they are working by the protocol OSPF
Border routers are also BGP-connection upstream provider
schema00.JPG
In the case where the main BGP-connection is lost, cisco switches receive the default route and continue to work, but mikrotik does not get default route.
On closer examination, found that the neighborship established on FULL-state, LSA from the backup border router received:

routing ospf lsa print
AREA                                                                                                                    TYPE         ID             ORIGINATOR     SEQUENCE-NUMBER        AGE
backbone                                                                                                                router       10.10.1.15     10.10.1.15          0x80000030        392
backbone                                                                                                                router       192.168.10.1   192.168.10.1        0x800000ED        624
backbone                                                                                                                router       192.168.10.2   192.168.10.2        0x800000EA        621
backbone                                                                                                                network      192.168.10.2   192.168.10.2        0x80000031        632
external                                                                                                                as-external  0.0.0.0        192.168.10.2        0x80000030       1242
external                                                                                                                as-external  192.168.100.255 192.168.10.1        0x800000EB        634
external                                                                                                                as-external  192.168.100.255 192.168.10.2        0x800000EA       1239
external                                                                                                                as-external  192.168.10.255 192.168.10.1        0x800000EB        634
external                                                                                                                as-external  192.168.10.255 192.168.10.2        0x800000EA       1239

but routing table protocol OSPF default route does not get:

routing ospf route  print
# DST-ADDRESS        STATE          COST                                                                GATEWAY         INTERFACE
0 192.168.100.0/24    ext-2          20                                                                  192.168.10.1    ether6
                                                                                                         192.168.10.2    ether6
1 192.168.10.0/24    intra-area     10                                                                  0.0.0.0         ether6

If this scheme is going for the first time, everything works:

ip ro pr
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, B - blackhole, U - unreachable, P - prohibit
#      DST-ADDRESS        PREF-SRC        GATEWAY            DISTANCE
0 ADo  0.0.0.0/0                          192.168.10.1            110
                                           192.168.10.2

but after the first break - does not get default route
Please help me…