What will happen to the IPv4 address once IPv6 addresses come into play?
They'll continue to be in use for some time to comeThe two protocols can be in operation simultaneously - this machine already has both IPv4 and IPv6 addresses for example IPv6 only machines can communicate with IPv4 only machines via a range of bridging technologies and a special legacy address range that converts IPv4 addresses to IPv6 by simply adding a particular prefix.
