I-D ACTION:draft-han-mobileip-adad-01.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title		: Advance Duplicate Address Detection
	Author(s)	: Y. Han et al.
	Filename	: draft-han-mobileip-adad-01.txt
	Pages		: 16
	Date		: 2003-7-23
	
This document proposes to automatically allocate a care-of IPv6
addresses (CoA) for the use of mobile nodes that want to be fast
handovered. Each access router maintains 'Passive Proxy Cache' of
which each address is in advance generated and tested for its
uniqueness by the access router. Also, the access router acts as
'Passive Proxy' for an address reserved in 'Passive Proxy Cache' in
order not to affect the destination cache and neighbor cache of its
neighbor nodes and not to disturb the normal CoA configuration 
procedure of the nodes which do not obey this draft. During L3  
handover, a mobile node, which obeys this draft, requests one of 
the duplication-free addresses reserved by its target access router. 
After successfully acquiring the address, the mobile node assigns it
on its interface which attaches to the new link, without the RFC 2461
DAD. Consequently, the proposed scheme can completely take off the 
DAD procedure and hence the time involved in the exsting L3 handover
schemes

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