I ran a script that removes all dynamic arp entries and scheduled it to run once an hour. So far so good. I can get the actual script if you like.
-Ty On Apr 6, 2014 1:28 AM, "RickG" <[email protected]> wrote: > Oh, you mean IP scan? I thought I missed something. So, what did you do to > clear up ARP? > > > On Sat, Apr 5, 2014 at 9:05 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 > > > > > > -- > -RickG KyWiFi > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.butchevans.com/pipermail/mikrotik/attachments/20140406/72762c80/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... 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