Internet Protocol version 6, the latest Internet Protocol standard defined in RFCi 3513. The process of migrating to IPv6i from IPv4i is in its very early stages and will undoubtedly take many years to complete. . IPv6 numbers are 128-bit values that consist of eight 16-bit values expressed as hexadecimal (base 8) numbers between 0 and FFFF (0 and 65,535 in decimal (base 10)), separated by colons. There are three conventional forms for representing IPv6 addresses as text strings (see section 2 of RFC 3513 for a detailed description of the three forms).