In addition to IPv4 (often written as just IP), there is IP version 6 (IPv6). IPv6 was developed as IPng (“IP:The Next Generation” because the developers were supposedly fans of the TV show “Star Trek ...

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" ...

Twenty years ago, the fastest Internet backbone links were 1.5Mbps. Today we argue whether that’s a fast enough minimum to connect home users. In 1993, 1.3 million machines were connected to the ...

In April, ARIN, the (North) American Registry for Internet Numbers, announced that it had reached “phase 4” of its IPv4 countdown plan, with fewer than 17 million IPv4 addresses remaining. There is no ...

Migration has been gradual, but the move to IPv6 could speed up with IPv4 addresses running out The argument about how best to upgrade the Internet’s main communications protocol raged in the Internet ...

The various Internet management groups made it official this morning. We're now out of Internet Protocol version 4 (IPv4) Internet address blocks. The final five blocks of IPv4 addresses were given ...

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 ...

Just about everyone in the IT business has heard the promises of IPv6. Why continue leasing Class A blocks to individual companies when most companies have to beg for a Class C block of 256 IP ...

Internet growth rates appear to have stalled as the current Internet Protocol version 4 (IPv4) addresses become scarce, according to a report by the Asia Pacific Network Information Centre (APNIC).

This is the first of many technical blog posts I’m going to post on IPv6 architecture and implementation for a Microsoft Windows-based environment. I started off with a basic introduction of the IPv4 ...