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Distributed DHCP and DNS in a Wireless Mesh Network
Based on DHTs
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||Technische Universität Berlin
advantage of mesh networks is that they forgo a central infrastructure
completely. Network protocols like DHCP and DNS, however, are normally
run on central servers. This results in several problems, since the
mesh network would have to rely on a central infrastructure, which
would also be a single point of failure. To solve this problem I
extended a Chord-based DHT network I had developed for my semester
project so that it was able to provide both protocols. This approach
allows the operation of DHCP and DNS without central servers, since
every node of the DHT network works as a server. This is advantageous
because server crashes can now no longer influence the availability of
the protocols. The main focus of this thesis is on the DHCP protocol.
It was confirmed that the use of a DHT network is, regarding the
robustness against failures, beneficial. However, it might introduce
performance problems in terms of response times as the DHT network
gets larger. The DNS protocol was also evaluated, however focussing on
correctness rather than performance.
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