Each router should have a unique router ID typically, best practice, is to take an IP Address (unique) and assign it to the Loopback interface ( a dummy bridge interface) and use that a router id in your OSPF instance..
irrespective of how many interfaces you have running OSPF, only one unique router id is required. --------- is it possible that you have created a loop where you are seeing the packets from the router it-self ? Regards. Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net > From: "Robbie Wright via Mikrotik-users" <mikrotik-users@wispa.org> > To: "Mikrotik Users" <mikrotik-users@wispa.org> > Sent: Tuesday, December 13, 2016 11:50:36 PM > Subject: Re: [Mikrotik Users] OSPF errors on router > I saw this issue pop up again. The duplicate router ID thing caught me. > We've got a main tower that has a vlan to a dozen other sites, each running an > MT with OSPF. Each vlan has a ptp ospf interface, not broadcast, with a unique > /30 public IP space. We only run one instance of OSPF on our main tower > router, > with only one router ID. > I'm thinking maybe the one router ID across all the vlans is causing the > issue? > Functionally, everything is working fine. But our logs are blowing up with the > "Discarding packet: locally originated" error. > Robbie Wright > Siuslaw Broadband > 541-902-5101 > On Thu, Sep 17, 2015 at 10:07 AM, Steve Barnes < st...@pcswin.com > wrote: >> Justin I think I have followed all those steps. I am using 6.29 exclusively. >> Is >> there issues with that release? >> Steve Barnes >> General Manager >> PCSWIN.COM >> Howard Power Performance >> From: mikrotik-users-boun...@wispa.org [mailto: >> mikrotik-users-boun...@wispa.org >> ] On Behalf Of Justin Wilson - MTIN >> Sent: Thursday, September 17, 2015 12:47 PM >> To: Mikrotik Users < mikrotik-users@wispa.org > >> Subject: Re: [Mikrotik Users] OSPF errors on router >> Some things to make sure of before banging your head. >> 1.Make sure *every* router participating in OSPF is on the same OS version. >> They >> don’t have to be the latest greatest, just the same. one router in a pool of >> 50 >> can taint the database. Even if it’s one version behind of ahead. >> 2.Make sure your loopback IP addresses (you are using loopbacks correct?) are >> listed as the router ID. >> 3.If these are true point-to-point backhauls change the OSPF type to PTP. >> This >> cuts down on the chatter on the link. Once OSPF establishes a session it >> stops >> talking as much as if it were in broadcast mode. >> 4.Double check your IPs and subnet masks. >> 80some% of the OSPF issues I see are a result of mismatched router OS >> versions. >> Bringing everything to the same version solves a ton of issues. >> Justin Wilson >> j...@mtin.net >> --- >> http://www.mtin.net Owner/CEO >> xISP Solutions- Consulting – Data Centers - Bandwidth >> http://www.midwest-ix.com COO/Chairman >> Internet Exchange - Peering - Distributed Fabric >>> On Sep 17, 2015, at 8:25 AM, Steve Barnes < st...@pcswin.com > wrote: >>> Not completely. Not sure we don’t have a small Comm issue to a backhaul. >>> However >>> the outages have gone away just get 2-3 errors a day but it is not causing >>> any >>> OSPF issues or outages. Thinking of just adding a Filter rule to block them >>> and >>> go on with life. >>> Steve Barnes >>> General Manager >>> PCSWIN.COM >>> Howard Power Performance >>> From: mikrotik-users-boun...@wispa.org [ >>> mailto:mikrotik-users-boun...@wispa.org >>> ] On Behalf Of Mike Hammett >>> Sent: Thursday, September 17, 2015 8:14 AM >>> To: Mikrotik Users < mikrotik-users@wispa.org > >>> Subject: Re: [Mikrotik Users] OSPF errors on router >>> Did you figure this out? >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> From: "Steve Barnes" < st...@pcswin.com > >>> To: "Mikrotik Users ( mikrotik-users@wispa.org )" < >>> mikrotik-users@wispa.org > >>> Sent: Thursday, September 3, 2015 11:57:17 AM >>> Subject: [Mikrotik Users] OSPF errors on router >>> I am getting the attached errors in my event log on one tower. No ports are >>> flapping on the backhaul. Both Mikrotiks are on 6.29. Both routers CPU is >>> <10%. >>> As soon as this error passes they will work 100% for hours, even days. I am >>> confused and lost. PTP conection was Broadcast and have changed to point to >>> point. What to look at? >>> <image001.jpg> >>> Steve Barnes >>> General Manager >>> PCSWIN.COM >>> Howard Power Performance >>> _______________________________________________ >>> Mikrotik-users mailing list >>> Mikrotik-users@wispa.org >>> http://lists.wispa.org/mailman/listinfo/mikrotik-users >>> _______________________________________________ >>> Mikrotik-users mailing list >>> Mikrotik-users@wispa.org >>> http://lists.wispa.org/mailman/listinfo/mikrotik-users >> _______________________________________________ >> Mikrotik-users mailing list >> Mikrotik-users@wispa.org >> http://lists.wispa.org/mailman/listinfo/mikrotik-users > _______________________________________________ > Mikrotik-users mailing list > Mikrotik-users@wispa.org > http://lists.wispa.org/mailman/listinfo/mikrotik-users
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