Some time last year, a weird thing happened in the hackerspace where this is being written. The Internet was up, and was blisteringly fast as always, but only a few websites worked. What was up?

In the early 1990s, internet engineers sounded the alarm: the pool of numeric addresses that identify every device online was not infinite. IPv4, the fourth version of the Internet Protocol, used ...

In the world of networking, most people are familiar with IPv4. These numerical labels, like 192.168.2.1, have been used to identify devices for decades and have been the primary addressing scheme ...

If you’ve ever been configuring a router or other network device and noticed that you can set up IPv4 and IPv6, you might have wondered what happened to IPv5. Well, thanks to [Navek], you don’t have ...

It would have been so easy if the early Internet and TCP/IP network designers had made IPv6 backward compatible with IPv4. They didn't. In 1981, IPv4's 32-bit 4.3 billion addresses look more than ...

IPv4 addresses are set to finally run out in about a month’s time, leaving IPv6 deployment as the only viable solution for Internet growth over the long term. In October, the RIPE NCC – as the ...

In a world where IPv6 lives and IPv4 addresses are scarce, network providers must fight for survival... or at least, claim their IP blocks quickly. The RIPE NCC, the regional internet registry for ...

In February, the news broke that the Internet Assigned Numbers Authority had allocated the final blocks of IPv4 addresses to the five Regional Internet Registries to be distributed to parties within ...

In February 2011, the global Internet Assigned Numbers Authority (IANA) allocated the last blocks of IPv4 address space to the five regional Internet registries. At the time, experts warned that ...

In this post, I will explain some of the basics that are easy to understand. Before we discuss the differences between IPv4 and IPv6, we need to know some of the basics of IPv4. Finally, I will ...