• Nils Rodday, Lukas Kaltenbach, Italo Cunha, Randy Bush, Ethan Katz-Bassett, Gabi Dreo Rodosek, Thomas C. Schmidt, Matthias Wählisch,
  On the Deployment of Default Routes in Inter-domain Routing,
  In: Proc. of ACM SIGCOMM Workshop on Technologies Applications and Uses of a Responsible Internet (TAURIN'21), New York, USA: ACM, 2021.
   Website   BibTeX   Abstract  

Abstract: In this paper, we argue that the design of a responsible Internet requires a clear understanding of the current state of deployment. This work sheds light on default routing in the Internet core, a routing strategy that reduces control but may help to increase availability when forwarding packets. We revisit and extend two common methodologies based on active measurements, to increase coverage and accuracy. Our results show larger differences in the results between the methodologies and IPv4 and IPv6 routing. We confirm that default route deployment strongly correlates with customer cone size and that smaller networks are more likely to deploy a default route. Our data will help to better assess the deployment of other protocols such as RPKI route origin filtering.