On Tue, 2008-01-15 at 09:49 -0800, David Lang wrote: > On Tue, 15 Jan 2008, Roland Abt wrote: > > > Ian, > > > > If my question is too general, it's because it was meant to be I am > > interested in your experience with gratuitous ARP because I need to > > implement > > a failover software that also will strongly rely on G.ARP when announcing a > > IP/MAC address change. I do not know all Ethernet-capable devices every > > built > > and how they react on G.ARP, so I appreciate if you share your experience > > with me. My guess was that this is a vital issue for HA as well, but so far > > I > > could not find a lot of resources on the net addressing this subject. > > > > What I have in mind is something like the following list: > > > > OS/Device Uses G.ARP Request for Uses G.ARP > > Reply for > > ------------------------------------------------------------------------------- > > Windows XP nothing nothing > > Windows Vista only updating an arp entry nothing > > Linux Kernel xxx nothing updating > > an > > existing and inserting a new arp entry > > Cisco IOS ... ... > > ... > > we don't have a table like this. the details of getting things to work were > hashed out back in the very early days (go back to the earliest mailing list > archives). initially there was one method used, and it didn't work for all > devices, we identified a second method and the fact that it also didn't work > for > all devices. We then tested that if we did both everything that people were > running into was handled, and it's worked ever since.
Just to add a little to this, The original way worked on Linux only. The 2nd way worked on the BSD's and Solaris (and was also portable so I believe it also works on Apple too). Matt > > David Lang > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
