> 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
>
> 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).
Talk about a DOE (Denial of Existance) attack. Some verbose
screen and system messages would be in order though.
Anyone could send out evil arp replies, and breaking the startup
scripts on a host because of this is a very bad thing. Interfaces
don't come up, then causes applications to fail, etc...
---
As folks might have suspected, not much survives except roaches,
and they don't carry large enough packets fast enough...
--About the Internet and nuclear war.
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