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 ...

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 ...

An Internet Protocol address is a number that identifies a device in a network, though the term is often used to refer to a device on the Internet itself. An IP address is vital for transferring data ...

It may not be a sign of the coming apocalypse, but it does mark a watershed moment in the development of the Internet: the Internet Assigned Numbers Authority (IANA) is on the verge of handling out ...

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 ...

Qasim Lone, an employee of RIPE Labs, shows in an analysis that has so far gone largely unnoticed by the public that an IPv4 address range that has actually been reserved for decades is secretly being ...