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SubjectRe: [2.4 PATCH] bugfix: ARP respond on all devices
On Mon, 18 Aug 2003 06:14:20 -0700
"David S. Miller" <> wrote:

> On Mon, 18 Aug 2003 15:17:55 +0200
> Stephan von Krawczynski <> wrote:
> > If I remember that right kernels 2.0 and 2.2 behave differently, so
> > you are talking about setups for 2.4 kernels.
> All kernel versions have had the ARP behavior we have now.

They have not. I just tried.

I have two boxes with 2 interfaces each and a third for testing. Testbox 1 has
2.2 kernel, testbox 2 has 2.4 kernel.

The three are connected via same switch on primary if.

I ping the second if ip of testbox 2, then arp -vn and see the second ip with
a mac entry of testbox 2 primary if.
I ping the second if ip of testbox 1, then arp -vn and see _no_ entry for this
second ip, it is in fact routed (which I would state as the expected
behaviour as the second ip is from another subnet).

> Both 2.0 and 2.2 answer on all interfaces for ARP requests
> by default just like 2.4 does.

Try it. Proven wrong. See above.

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