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SubjectRe: [patch] 2.4 version of my duplicate IP and MAC detection patch
On Fri, Sep 22, 2000 at 01:25:54AM -0700, David S. Miller wrote:
> I don't like this change at all, I think it can be done completely
> in user space. The existence of a working tcpdump is proof of this
> fact. :-) Whether it can be done efficiently is another issue.

I agree. I think DAD once during IP configuration should be enough.

> Even failing that, I would prefer something like a special "arp
> netlink socket" which would allow a privileged userspace program
> to hear all arp traffic the machine can hear.

That already exists in form of a packet socket bound to the ARP IEEE
protocol. Marc is probably right though that running an arp daemon
all the time just for that would be a bit of overkill though.

-Andi
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