The world has passed it by in many ways, yet it remains relevant Feature In the early 1990s, internetworking wonks realized ...

Many in the industry realize that as we migrate to IPv6 there will be a day when IPv4 is not needed anymore. However, that transition seems daunting and may take decades. In the meantime, ...

If you are using Internet or almost any computer network you will likely using IPv4 packets. IPv4 uses 32-bit source and destination address fields. We are actually running out of addresses but have ...

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 ...

I’ve written previously that as we make the slow – and long overdue – transition from IPv4 to IPv6, we will soon be stuck with an awkward interim period in which the only new globally routable ...