The format of an IP address in the traditional 32-bit version of the IP protocol. For the foreseeable future, IPv4 will co-exist with the newer IPv6 version (see IPv6). IPv4 uses a "dotted decimal" ...

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 ...

An IP address is a 32-bit unsigned integer. It’s usually written as four numbers separated by dots, as in: 212.227.196.186. This format is knows as the “dotted decimal notation”. Applications use ...

I ended my post on IPv6 address design saying I would follow up by showing you a few simple tricks for working with hexadecimal numbers. Then the long-predicted depletion of the IANA pool of IPv4 ...