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Re: IP, MAC address duplication detection ?

from [Greg Daley] [Permanent Link][Original]
To: Seong Moon <seong@xxxxxxxxxx>
Subject: Re: IP, MAC address duplication detection ?
From: Greg Daley <greg.daley@xxxxxxxxxxxxxxxxx>
Date: Mon, 31 Mar 2003 13:00:34 +1000
Cc: netdev@xxxxxxxxxxx
Organization: Monash University
References: <003401c2f402$3fbc4450$28acfe81@seong>
Reply-to: greg.daley@xxxxxxxxxxxxxxxxx
Sender: netdev-bounce@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529 
Hi Seong Moon,

the IPv6 implementation does duplicate address detection.
I'm not sure if this is similar to the ipv4 gratuitous ARP.

Greg

Seong Moon wrote: 
Hi, there.

In Linux box, How can I detect IP/MAC address duplication?
I'm using kernel-2.4.18 but the kernel does not seem to have
gratuitous arp implementation. Is it right?

I know I can detect IP address duplication by arping program
But I want to implment a following mechanism.

When the linux machine bootstraps or one of the nework interfaces
is assigned a MAC/IP address, the linux box can detect the duplication
of newly assigned MAC/IP address. How can I do this ?

thanks.





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