What is IPv6? "Go back to good old Internet, with more address and newer technology" Larger IP address space - 128bit Deploy more recent technologies Autoconfiguration Security Friendly to traffic engineering technologies Multicast Better support for ad-hoc networking A cure to routing table growth - aggregation-friendly Simplified header structure Allows flexible protocol extensions Smooth transition from IPv4 Follows the key design principles of IPv4 ... but anyway, it is Internet Protocol. very similar to IPv4.