Re: dhcpdecline

Rajesh Saluja <rsaluja@wipinfo.soft.net> Tue, 09 April 1996 04:16 UTC

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Date: Tue, 9 Apr 1996 00:03:07 -0400
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From: Rajesh Saluja <rsaluja@wipinfo.soft.net>
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Subject: Re: dhcpdecline
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Allen Lung writes:
> 
> I noticed in draft-ietf-dhc-dhcp-06.txt under the message dhcpdecline that
> the client declines because the address in already in use.  How does the
> client determine this ?
The client determines this by broadcasting an ARP request on the net. The 
client puts 0.0.0.0 as the source IP address and the address obtained from 
the DHCPACK message as the target address in the ARPREQUEST packet. 
If ARPREPLY comes, address is already in use otherwise address is unique.