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SubjectRe: Why no printk for duplicate IPs?
Hi!

> > > So, is it correct that for IPv4, linux won't report the fact that another
> > > machine is answering ARP requests for one of its IPs?
> > >
> > > If so why?
> >
> > ARP Replies are unicast
>
> On the other hand, someone should still take the time to modify
> "ifconfig" to send out one or two ARPs for our OWN IP address, and if
> they get answered, it should not allow the ifconfig to complete
> (without the operator specifing something like --force).

Strange. When I configured windows 95 and linux on same IP address
(turning linux on after w95), w95 detected collision and disabed its
own networking (I call this feature). I wonder how they did it.

Two linuxes on same IP did very bad things, stealing IPs from each
other.

Perhaps it is not neccessary to wait for --force, but warning at
ifconfig time would certainly be handy.

Pavel
--
I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel. Pavel
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