At last, a small set of unicast addresses have been defined for special use. They do not carry a scope, so they are discussed independently of the other unicast addresses. Two basic addresses carry ...

When the ARPANET was designed in the late 1960s, it was outfitted with a Network Control Protocol (NCP) that made it possible for the very different types of hosts connected to the network to talk ...

One glaring problem with IPv4 is that it supports only 4.2 billion possible addresses while, by some estimates, the number of internet-connected devices is expected to grow to 28.5 billion by 2022.

IPv6 was delivered with migration techniques to cover every conceivable IPv4 upgrade case, but many were ultimately rejected by the technology community, and today we are left with a small set of ...

The IPv6 protocol affects the security of your network even if you haven't deployed it internally. Here are the most important points every security team needs to understand about the protocol. If you ...

The time is ripe for your business to migrate to IPv6, but you need to keep your new connections safe. Internet Protocol version six (IPv6) is the way that internet communication will be handled for ...

Although IPv6 adoption seems to be moving at a snail's pace, there's no outrunning it. Brien Posey demystifies some of the addressing issues many admins are still trying to figure out. [Editor’s note: ...