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Title : A common framework for autoconfiguration of ad hoc networks
Author(s) : K. Mase, et al.
Filename : draft-mase-autoconf-framework-04.txt
Pages : 18
Date : 2007-9-24
We consider the unique address/prefix autoconfiguration problem for
MANETs. Specifically, we consider two cases. First, a node without
a pre-assigned and valid local address/prefix acquires a new local
address/prefix and becomes a member of a new or existing MANET.
Second, two or more MANETs merge. In the first case, a mechanism of
IP address/prefix generation is needed. We may have MANET-wide
duplicate address/prefix detection (DAD) on newly generated address/
prefix (tentative address/prefix) for suppressing occurrence of
address/prefix conflict with existing address/prefixes (pre-service
DAD). In the second case, duplicate address/prefix may occur as the
result of a merger of two formerly independent networks. We may have
DAD on addresses/prefixes in use for detecting and resolving
duplicate addresses/prefixes and suppressing routing information
contamination due to existence of duplicate addresses/prefixes (in-
service DAD). To define pre-service DAD and in-service DAD, we use
autoconfiguration phases that are common for both proactive and
reactive routing protocol. Each node exists in one of the
autoconfiguration phases at any time. A node, that detects duplicate
address/prefix between other nodes, may advertise the detected
duplicate address/prefix to all other nodes in the MANET. This is
termed "Duplicate address/prefix advertisement" (DAA). The specific
DAD and DAA algorithm is beyond the scope of this document.
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