The distribution of IP addresses has always occurred in a somewhat socialist manner: “to each according to his needs.” But those days are drawing to an end now. So far in 2012 within the North ...

As we run out of IPv4 address space, is it time to create an exchange for trading unused address blocks? Ars contributors Iljitsch van Beijnum and Timothy Lee tackle the issue. In this article, Tim ...

Word around the net is that there's a new website technology that allows for a faster, safer web browsing experience, and it's called IPv6. As it turns out, this protocol isn't new at all, but instead ...

IP addresses are critical for the infrastructure of the Internet – without them the Internet simply would not work. The proliferation of Internet-connected cell phones, e-readers and other devices has ...

In this chapter, you will learn about the addressing used in IPv4 and IPv6. We'll assign addresses of both types to various interfaces on the hosts and routers of the Illustrated Network. We'll ...

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 ...

Many of our readers are no doubt familiar with the basics of IP address: They provide a network address that’s used to reliably route Internet traffic to your PC, smartphone, or other device. The ...

As hundreds of regional communications service providers rush to deploy broadband and add thousands of new subscribers to their networks, they face a long list of tasks and budget items to be ...

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 ...

After some legal wrangling, the American Registry for Internet Numbers (ARIN) has reclaimed over 735,000 scarce IPv4 addresses that were fraudulently obtained by a businessman who is now facing ...