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?
Re: OSPF Problem RB1200 - VERY WEIRD
5.2 ? It is old, try 5.22We are running RouterOS 5.2 level 6 on a RB1200
Re: OSPF Problem RB1200 - VERY WEIRD
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 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:
but routing table protocol OSPF default route does not get:
If this scheme is going for the first time, everything works:
but after the first break - does not get default route
Please help me...
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 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:
Code: Select all
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 1239Code: Select all
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 ether6Code: Select all
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
192.168.10.2Please help me...
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