Discovering services in the local broadcast domain is easy from the application point of view. However, from the network point of view, especially when wireless networks are also involved, it is wasteful, as query and response are broadcast on all access points at the lowest data rate, ignoring efficient transmission modes. It also does not scale beyond the single broadcast domain, as this would require deployment of IP multicast, which has yet to happen despite decades of trying. We introduce Stateless DNS as an efficient and broader range alternative. Stateless DNS requires no action from the network service provider, improves upon privacy and comes with incremental deployment options. While providing a well-known DNS interface to the applications, it can identify organizational boundaries and uses existing DNS caches for performance.

About Marcel Waldvogel

Marcel Waldvogel holds a Diploma degree and a Ph.D. from ETH Zürich, both in Computer Science. After an Assistant Professorship at Washington University in St. Louis and Research Staff Member at IBM Zurich Research Laboratory, he became Professor of Computer Science at University of Konstanz and head of the university’s IT infrastructure. His research interests focus on clever uses (and sometimes abuses) of network protocols to improve their usefulness, efficiency, privacy, and security.

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