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

I don't think anyone is asking for a change in the default behaviour
(although my point about breaking modules does apply), people would be
satisfied, even ecstatic, if we had a simple way (flag) to set to make
Linux work without setting /proc filters, using arpfilter, applying source
routes (David's suggestion) and generally jumping through hoops.

Agree! Just a flag (ARP_ISOLATED, default to 0) in
/proc/sys/net/ipv4/conf/*? The default behaviour of the current (and future
kernels) stays as it is now, so it doesn't break for anyone, and a lot of
people (including me :) benefit from a much easier setup.

No need to implement a whole hidden scenario either.

Regards,
Bas