On Tue, 15 Jan 2008, Roland Abt wrote:

Hello everybody

I read on your website that Linux HA uses gratuitous ARPs for announcing a MAC address change. Did you face any issues so far regarding those gratuitous ARPs with special devices. As far as I know, there is no rfc defining a standard action when receiving such gratuitous ARPs. So I guess some OS might simply ignore them or handle them differently than other implementations.

there are two flavors of gratuitous arp messages (requests and responses), in practice we have found that by sending both we get very close to working with everything.

David Lang
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