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This is the BSDA Study Guide Book written via a wiki collaboration. This is a work in progress. You may contribute to or discuss this specific page at http://bsdwiki.reedmedia.net/wiki/Understand_IPv6_address_theory.html. Understand IPv6 address theory Concept Be able to recognize basic IPv6 addressing theory including: the components of an IPv6 address; the support for multiple addresses (link, local, global) per interface; address and prefix representation (aaaa:bbbb::dddd/17) and the address format (48bit prefix, 16bit subnet, 64 hostbits). In addition, understand the autoconfiguration process where the router sends its prefix or gets queried and the host adds its 64 host-bits which are derived from its MAC address. Finally, be able to troubleshoot basic IPv6 connectivity. Introduction Examples Practice Exercises More information ifconfig(8), ping6(8), rtsol(8)