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
