Re: arp, kernel 2.2.15 and 2.3.99-pre6

From: Andi Kleen (ak@suse.de)
Date: Thu May 04 2000 - 09:52:42 EST


Andrey Savochkin <saw@saw.sw.com.sg> writes:
>
> Checks for ARP sending via routing table is a good idea, provided that we get
> rid of the "hidden" flags. We may do it as Andi has done. Or we may do it
> in the following way: add "noarp" flag to routes, and if route lookup gives
> an entry with the flag being set, we do not send reply.

That would not work for load balancing on multi path links
(I wrote the arpfilter primarily for this purpose -- to get load balancing
for incoming connections)

> Anyway, "ARP hide" stuff is broken because it establishes additional
> unnatural relations between addresses and interfaces (instead of using
> natural terms like routes), and looks ugly being implemented.

I agree.

-Andi

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