RE: [2.4 PATCH] bugfix: ARP respond on all devices

[Richard Underwood]

David S. Miller wrote:
> 
> In the ARP request we are using the source address in the packet we
> are building for output.
> 
	Well, you shouldn't be! The ARP request represents all FUTURE
packets being sent out that interface, not just the one single packet that
happened to kick of this ARP request.

> If ARP doesn't work using that source address, we can only assume IP
> communication is not possible either.
> 
	That's clearly not a valid assumption. For a start it precludes IP
routeing, but I've also demonstrated it not to be the case with a simple
multi-homed server.

	Thanks,

		Richard
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