Comments on: HowTo force remote devices (routers/switches) to refresh their arp cache entry for a machine http://www.ducea.com/2009/03/06/howto-force-remote-devices-routersswitches-to-refresh-their-arp-cache-entry-for-a-machine/ The Journal Of A Linux Sysadmin Thu, 09 Feb 2012 03:50:59 +0000 hourly 1 http://wordpress.org/?v=3.3 By: Matthttp://www.ducea.com/2009/03/06/howto-force-remote-devices-routersswitches-to-refresh-their-arp-cache-entry-for-a-machine/comment-page-1/#comment-193860 Matt Tue, 10 Jan 2012 04:51:50 +0000 http://www.ducea.com/?p=679#comment-193860 I just had this problem with a subinterface on a VM that I migrated to a new cluster. The primary IP updated ARP but the sub required an arping. This article was really helpful, thanks! I just had this problem with a subinterface on a VM that I migrated to a new cluster. The primary IP updated ARP but the sub required an arping. This article was really helpful, thanks!

]]> By: Bufallohttp://www.ducea.com/2009/03/06/howto-force-remote-devices-routersswitches-to-refresh-their-arp-cache-entry-for-a-machine/comment-page-1/#comment-193016 Bufallo Tue, 28 Jun 2011 12:46:42 +0000 http://www.ducea.com/?p=679#comment-193016 Geert Nijs: partly true, GARP is not performed for subinterfaces, so not applicable for virtual addresses. I had problem to update routers arp cache. Geert Nijs: partly true, GARP is not performed for subinterfaces, so not applicable for virtual addresses. I had problem to update routers arp cache.

]]> By: Geert Nijshttp://www.ducea.com/2009/03/06/howto-force-remote-devices-routersswitches-to-refresh-their-arp-cache-entry-for-a-machine/comment-page-1/#comment-182863 Geert Nijs Sat, 11 Sep 2010 09:51:02 +0000 http://www.ducea.com/?p=679#comment-182863 Your explanation is correct. However, a PROPER network driver will issue a Gratuitous ARP REPLY every time the interface goes up/down or every time the IP address is changed. This will update all ARP tables in all switches automatically. So no special actions are needed. Your explanation is correct. However, a PROPER network driver will issue a Gratuitous ARP REPLY every time the interface goes up/down or every time the IP address is changed. This will update all ARP tables in all switches automatically. So no special actions are needed.

]]> By: Bhaskar Chowdhuryhttp://www.ducea.com/2009/03/06/howto-force-remote-devices-routersswitches-to-refresh-their-arp-cache-entry-for-a-machine/comment-page-1/#comment-182756 Bhaskar Chowdhury Tue, 07 Sep 2010 06:09:28 +0000 http://www.ducea.com/?p=679#comment-182756 Good post mate. Keep up the good work!Cheers! Bhaskar Good post mate. Keep up the good work!

Cheers!
Bhaskar

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