It is possible, but I have never seen it on anything else. I have about 20 routers running 5.22 without issue. This is the only 6.x device I have that is routing right now.
-Ty On Sat, Apr 5, 2014 at 8:09 AM, Tushar Patel <[email protected]> wrote: > Is it possible this bug existed on earlier version too? > > Tushar > > > > On Apr 5, 2014, at 8:05 AM, Ty Featherling <[email protected]> > wrote: > > > > There is a ping scan tool in routeros. You could script it to run > > periodically. > > > > I may have found an easier fix though. I scripted the router to clear arp > > every hour. That seems to be working. > > > > -Ty > >> On Apr 5, 2014 1:06 AM, "RickG" <[email protected]> wrote: > >> > >> How do you do that? I can tell you that I have run ping scanner when it > >> happens and it clears up things on the offending subnet. > >> > >> > >> On Fri, Apr 4, 2014 at 12:36 PM, Ty Featherling < > [email protected] > >>> wrote: > >> > >>> I wonder if a ping scan run from the router will update that entry? > >>> > >>> -Ty > >>> > >>> > >>>> On Fri, Apr 4, 2014 at 11:34 AM, RickG <[email protected]> wrote: > >>>> > >>>> Same here. No DHCP. > >>>> > >>>> > >>>> On Fri, Apr 4, 2014 at 9:21 AM, Ty Featherling < > >> [email protected] > >>>>> wrote: > >>>> > >>>>> I thought of that, but the DHCP server isn't on this router. > >>>>> > >>>>> -Ty > >>>>> > >>>>> > >>>>> On Thu, Apr 3, 2014 at 10:18 PM, Butch Evans <[email protected]> > >>>>> wrote: > >>>>> > >>>>>>> On 04/03/2014 06:29 PM, RickG wrote: > >>>>>>> > >>>>>>> Thats the bug! I've upgraded all the way to 6.11 but cant get away > >>>> from > >>>>>>> it! > >>>>>>> I'm not doing anything fancy with the CCR but this is exactly the > >>> bug > >>>>> I'm > >>>>>>> experiencing. When I switch over to my 1100 the issues go away. I > >>> hope > >>>>>>> Mikrotik gets this fixed soon! Thanks for the post! > >>>>>>> > >>>>>>> > >>>>>>> On Thu, Apr 3, 2014 at 2:57 PM, Ty Featherling < > >>>> [email protected] > >>>>>> > >>>>>>> wrote: > >>>>>>> > >>>>>>> After scratching my head for a day I just figured out what is > >>> causing > >>>>>>>> these > >>>>>>>> support calls where nothing seems wrong except the user cannot > >> get > >>>>>>>> online. > >>>>>>>> Turns out the CCR I have routing this part of the network is > >>>>>>>> experiencing a > >>>>>>>> bug in the ARP table. For whatever reason, customers would get an > >>> IP > >>>>>>>> assigned but that IP address had a different MAC attached in the > >>> ARP > >>>>>>>> table > >>>>>>>> on the CCR. Delete the entry manually and it immediately adds the > >>>>> correct > >>>>>>>> one it and everything is fine. The ARP timeout is set to the > >>> default > >>>>> and > >>>>>>>> lowest possible 30 minutes. > >>>>>>>> > >>>>>>>> A forum search for 6.x ARP bug found this report of the same > >> issue. > >>>>>>>> http://forum.mikrotik.com/viewtopic.php?f=2&t=78773 > >>>>>>>> > >>>>>>>> Just a heads up for anyone running 6.x out there. I am on 6.5 on > >>> this > >>>>>>>> router and I am not changing it due to the other stories about > >>> later > >>>>>>>> versions. I will keep an eye out for a bug-fix first. > >>>>>> It would be interesting to see if setting: > >>>>>> /ip dhcp-server set dhcp-server-name add-arp=yes > >>>>>> > >>>>>> If that at least works around the problem, then you may be at > >> least a > >>>>> step > >>>>>> in the right direction. > >>>>>> > >>>>>> > >>>>>> -- > >>>>>> Butch Evans > >>>>>> 702-537-0979 > >>>>>> Network Support and Engineering > >>>>>> http://store.wispgear.net/ > >>>>>> http://www.butchevans.com/ > >>>>>> > >>>>>> _______________________________________________ > >>>>>> Mikrotik mailing list > >>>>>> [email protected] > >>>>>> http://mail.butchevans.com/mailman/listinfo/mikrotik > >>>>>> > >>>>>> Visit http://blog.butchevans.com/ for tutorials related to > >> Mikrotik > >>>>>> RouterOS > >>>>> -------------- next part -------------- > >>>>> An HTML attachment was scrubbed... > >>>>> URL: < > >> > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140404/1973dfa6/attachment.html > >>>>> _______________________________________________ > >>>>> Mikrotik mailing list > >>>>> [email protected] > >>>>> http://mail.butchevans.com/mailman/listinfo/mikrotik > >>>>> > >>>>> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > >>>>> RouterOS > >>>> > >>>> > >>>> > >>>> -- > >>>> -RickG KyWiFi > >>>> -------------- next part -------------- > >>>> An HTML attachment was scrubbed... > >>>> URL: < > >> > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140404/539c5186/attachment.html > >>>> _______________________________________________ > >>>> Mikrotik mailing list > >>>> [email protected] > >>>> http://mail.butchevans.com/mailman/listinfo/mikrotik > >>>> > >>>> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > >>>> RouterOS > >>> -------------- next part -------------- > >>> An HTML attachment was scrubbed... > >>> URL: < > >> > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140404/35bcb2a0/attachment.html > >>> _______________________________________________ > >>> Mikrotik mailing list > >>> [email protected] > >>> http://mail.butchevans.com/mailman/listinfo/mikrotik > >>> > >>> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > >>> RouterOS > >> > >> > >> > >> -- > >> -RickG KyWiFi > >> -------------- next part -------------- > >> An HTML attachment was scrubbed... > >> URL: < > >> > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140405/d4447dd2/attachment.html > >> _______________________________________________ > >> Mikrotik mailing list > >> [email protected] > >> http://mail.butchevans.com/mailman/listinfo/mikrotik > >> > >> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > >> RouterOS > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: < > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140405/07e5c9b5/attachment.html > > > > _______________________________________________ > > Mikrotik mailing list > > [email protected] > > http://mail.butchevans.com/mailman/listinfo/mikrotik > > > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > RouterOS > _______________________________________________ > Mikrotik mailing list > [email protected] > http://mail.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik > RouterOS > -------------- next part -------------- An HTML attachment was scrubbed... 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