EDN

IPv4 and IPv6 Addressing – Part 2: The network/host boundary and the IPv4 address

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...
EDN

IPv4 and IPv6 Addressing – Part 3: The IPv6 address

In addition to IPv4 (often written as just IP), there is IP version 6 (IPv6). IPv6 was developed as IPng (“IP:The Next Generation” because the developers were supposedly fans of the TV show “Star Trek ...
Network World

Sales of unused IPv4 addresses gathering steam

A growing number of U.S. carriers and enterprises are hedging their bets on IPv6 by purchasing blocks of unused IPv4 addresses through official channels or behind-the-scenes dealmaking. Why the ...
Ars Technica

With the Americas running out of IPv4, it’s official: The Internet is full

In April, ARIN, the (North) American Registry for Internet Numbers, announced that it had reached “phase 4” of its IPv4 countdown plan, with fewer than 17 million IPv4 addresses remaining. There is no ...