IPv6 (capitalized here as IpV6) is the next-generation InterNet^? Protocol. The main characteristic distinguishing IPv6 from the current protocol, IPv4, is that IPv6 stores an IpAddress^? as a 128-bit integer instead of IPv4's 32-bit integers. This results in a much larger AddressSpace^?:

Protocol	Bits	Number of addresses
IPv4	32	4294967296
IPv6	128	340282366920938463463374607431768211456

IPv6 has many other advantages over IPv4:

• Built-in security features
• Neighbor auto-discovery (no more need for DHCP)

IpV6onFreeBSD^? works very well, but is non-trivial to set up at this time, and there are some IpV6KnownIssues.