On Tue, Oct 12, 1999 at 06:35:15PM +0100, Alan Cox wrote:
> > ?Am I the target protocol address?
> >
> > Answer for the interface with the IP address, the MAC address was asked for:
> > Yes.
> > Answer for the interface with a different IP address: No. The target protocol
> > address is not the same as my interface address.
>
> IP addresses belong to machines not to interfaces.
>
> I'd prefer we had the same behaviour as BSD here, at least as an sysctl,
> but Alexey is right about our behaviour being valid RFC behaviour
>
But this behaviour is not very usefull. If a machine is in different subnets,
i can't see good reasons it should answer arp request on a subnet for one of
it's addresses in another subnet. At least linux 2.0 does not behave like that.
Note that this behaviour is possible with 2.0 if you simply use proxy-arp.
So I think 2.0-behaviour is superior: you have more control. So a sysctl
would be wondeful.
There is another thing in 2.2 which makes some problems here: the changed
proxy-arp. The 2.2 method for subnets is really wonderfull for most cases. But
sometimes one want to have more control. So I still wonder why the 2.0 method
has been removed? They could both coexist.
Wolgang Walter
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