Messages in this thread | | | From | (Peter Benie) | Subject | Re: Why no printk for duplicate IPs? | Date | Thu, 30 Sep 1999 10:50:09 +0100 |
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Marc Merlin writes ("Re: Why no printk for duplicate IPs?"): > 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? > > 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?
An alternative approach is to log when we receive a broadcast IP from an external interface which is apparently from one of our own addresses.
Peter
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