University of Southampton

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University of Southampton Rogue RA stats summary Tim Chown, James Morse University of Southampton {tjc,jsmm104}@ecs.soton.ac.uk

Stats on campus rogue RAs Used RAmond (http://ramond.sourceforge.net) on a ~50 AP dual-stack wireless network RAmond issues deprecating RA against rogues Rogue may not actually be turned off for some time Period of 376 days (2010-02-18 to 2011-03-01) Rogue RA seen on 228 of those days (60%) 257,669 rogue RAs seen, all for 2002::/16 (connection sharing?) 35 different MAC sources using 38 different link layer sources Only two devices used EUI-64 addresses, one was an HTC Four devices sent only one rogue RA Presence of a rogue RA may cause connectivity problems Whether on a dual-stack or IPv4-only network if the hosts have IPv6 enabled – can Happy Eyeballs help mitigate this?