Subject: ad hoc networks

From: "John Paul O Grady" <[email-masked]>
Date: Tue, 19 Nov 2002 10:23:14 -0000

Hello

I am doing some research on mobile ad hoc networks (manets). A mobile 
ad hoc network consists of a set of identical mobile nodes communicating 
with each other via wireless links. The networks topology may change rapidly and
unpredictably.

I am looking at the problem of dynamic configuration of IP addresses in the
absence of a DHCP server.

Beacuse the network is a multi hop network, the use of link local addresses
is not possible, the address
has to be unique within the network. There are different proposals on how to
provide dynamic IP address
allocations in such a environment, generally in the proposals a node chooses
a address from a pre defined
pool of available addresses and it then uses broadscasts in order to detect
whether or not a node exists with
the same address in the network.

There are other proposals that use hierarchical structures, where a node
acts as a leader node, this node is responsible
then for the allocation of IP addresses to new nodes as they enter the
network.

I was really just interested in the kind of proposals the zero config work group was
coming up with.

Regards

John Paul O Grady
CIT
Ireland

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