Re: Why no printk for duplicate IPs?

Marc Merlin (marc_news@merlins.org)
Wed, 29 Sep 1999 15:21:01 -0700


On mer, sep 29, 1999 at 11:47:29 +0100, Alan Cox wrote:
> > 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

good point.

However, at least Solaris, Irix and 95/NT give you a warning when someone
steals your IP (at runtime, not ifconfig time).
I suppose they do an ARP request on their own IP after answering an ARP
request themselves, and watch for an answer.

Any reason we can't do that?

Marc

-- 
Microsoft is to software what McDonalds is to gourmet cooking
 
Home page: http://marc.merlins.org/ (friendly to non IE browsers)
Finger marc_f@merlins.org for PGP key and other contact information

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/