A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Passive Duplicate Address Detection for Dynamic Host Configuration Protocol (DHCP)
Author(s) : A. Forte
Filename : draft-forte-dhc-passive-dad-00.txt
Pages : 7
Date : 2005-9-29
In a Layer 3 (L3) handoff procedure, one of the biggest components in
terms of delay is introduced by the DHCP address acquisition time
required for obtaining a valid IP address for the new subnet.
Duplicate Address Detection (DAD) is the most time consuming part of
the whole DHCP procedure. In this document we propose a new DAD
scheme which has been proven to be effective without introducing any
significant delay. By using such a scheme we can avoid duplicate
address and at the same time keep the address acquisition time in the
order of a few milliseconds. Using the new procedure will also
permit to detect an unauthorized use of a particular IP address even
if no duplicate IP has yet occurred.
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