I'm pretty sure a couple of us said that's what it was :P Get Unimus and you can config search all your Tik config, could have made it super easy to find.
On Tue, Dec 6, 2022 at 1:30 PM Nate Burke <[email protected]> wrote: > I think I finally tracked this one down. > > An IP Address out of the /30 that was the OSPF Network was defined on > another Router on an interface in the DOWN state. So the subnet/IP did not > show up in the routing table, or the OSPF Routing table, or even that local > routers routing table, but it must have caused some conflict in the OSPF > Process. Disabling the address on the remote router fixed the route > flapping. It was just causing Routes to change, the OSPF Neighbor never > flapped. > > Found it purely by accident, not sure how I'd have tracked it down > otherwise since there was no route to the subnet and looked like it did not > exist since the interface it was assigned to was down. > > On 10/12/2022 9:04 AM, castarritt wrote: > > I made an IP conflict recently after goofing my documentation on a /28 and > overlapping part of it with a /30 on the same router. It caused the same > sort of problem you were having. > > On Wed, Oct 12, 2022 at 8:47 AM Nate Burke <[email protected]> wrote: > >> I changed the /30 that the OSPF network was using over the F425 and that >> seems to have fixed it. The original /30 does not exist anywhere else >> on the network that I can find, either as a route, defined IP, or a >> Router ID. I didn't think of changing that since it seemed to be a >> weather event that triggered it in the first place, and it had been >> working fine for months. >> >> On 10/12/2022 7:11 AM, Dennis Burgess wrote: >> > I would have to take a look, but sounds like duplicate routerID or >> BFD. OSPF is pretty straight forward on this. >> > >> > >> > >> > Dennis Burgess, Mikrotik Certified Trainer >> > MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE, MTCSE, HE IPv6 Sage, Cambium ePMP >> Certified >> > Author of "Learn RouterOS- Second Edition" >> > Link Technologies, Inc -- Mikrotik & WISP Support Services >> > Office: 314-735-0270 Website: http://www.linktechs.net >> > Need to Automate MikroTik Backups: <https://cloud.linktechs.net> >> https://cloud.linktechs.net >> > Create Wireless Coverage's with <http://www.towercoverage.com> >> www.towercoverage.com >> > >> > -----Original Message----- >> > From: AF <[email protected]> On Behalf Of Nate Burke >> > Sent: Tuesday, October 11, 2022 5:18 PM >> > To: AnimalFarm Microwave Users Group < <[email protected]>[email protected] >> > >> > Subject: Re: [AFMUG] OSPF Pulling my hair out >> > >> > I changed the RB4011 to a RB2009, and tried downgrading the RB4011 to >> > ROS6.49.6 from ROS7.5 and it's doing the exact same thing. I've tried >> setting up an EoIP Tunnel across the F425, and changed the Router ID in >> OSPF. Still doing the exact same thing. As soon as I enable the F425 >> link, the Entire route table will flap between the Powerbridge and the >> > F425 even though the powerbridge is a cost of 20 higher than the F425. >> > If I disable the F425, everything is stable over the Powerbridge. Not >> sure what else to try. >> > >> > On 10/6/2022 4:22 PM, Robert Haas wrote: >> >> Make sure you haven't duplicated your router id. >> >> >> >> >> >> >> >> -----Original Message----- >> >> From: AF <[email protected]> On Behalf Of Nate Burke >> >> Sent: Tuesday, October 4, 2022 1:58 PM >> >> To: AnimalFarm Microwave Users Group < <[email protected]> >> [email protected]> >> >> Subject: [AFMUG] OSPF Pulling my hair out >> >> >> >> I have a site with a RB4011 connected via an old M5 Powerbridge, and >> an EPMP PTP425. The 4011 is running ROSv7, everything else is on ROSv6. >> Connecting to a CCR1036 and CCR1009 on the other ends of the radios. >> >> >> >> Everything was working perfectly for several months until a storm came >> >> through, and now the F425 OSPF Session will not stay stable. The OSPF >> >> Weights are set to prefer the F425 link. The OSPF neighbor never goes >> >> down, Adjacency/state never change, but the RB4011 will update it's >> >> entire routing table about every 5 seconds and flap back and forth >> >> between the Powerbridge and the F425. The remote routers never update >> >> the route to the 4011, it is stable over the F425. If I disable the >> >> F425 neighbor, everything is stable over the powerbridge. If I >> disable the Powerbridge neighbor, the router will lose connectivity for a >> second every 10 or 15 seconds, like it loses it's routing table. >> >> >> >> There is no packet loss across the F425 link, and it will Tik to Tik >> bw test at 100MB sync no problem and no packet loss. I've even tried >> changing ports on the 4011, plugging the F425 into a completely separate >> OSPF router on the remote end. I've also put the traffic through a VLAN on >> the F425 to see if the F425 was doing something weird with the packets. >> The F425 radios on both ends have been power cycled. I've also updated ROS >> to the latest 7beta, and no change. >> >> >> >> I'd think this is an issue with ROSv7/6 since the routing table keeps >> updating, but the powerbridge link is always fine, so it feels like >> something with the F425. Especially since it happened after a storm. >> >> But at the same time, how could a failure of the F425 be affecting >> OSPF? When I do OSPF Logging on the 4011, nothing is looking out of the >> ordinary. I guess I could try physically changing the 4011, but I've never >> had a failure like that before. >> >> >> >> Mainly I just want to vent that I'm probably missing something stupid, >> I just haven't been able to figure out what it is yet. >> >> >> >> >> > >> > -- >> > AF mailing list >> > [email protected] >> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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