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 ...

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 ...

Rate your favorite Cisco Press books. Years of innovation and work to continuously improve various transport technologies and network elements led operators to have high expectations of their networks ...

In the early 1990s, internet engineers sounded the alarm: the pool of numeric addresses that identify every device online was not infinite. IPv4, the fourth version of the Internet Protocol, used ...

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 ...

The majority of today’s firewalls have only IPv4 source and destination address objects in their policies. However, many of our firewalls are IPv6-capable and allow security administrators to ...

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 ...

IPv6 is central to safeguarding the expansion of the internet, but the global deployment of the protocol raises its own security challenges, says Axel Pawlik. The global adoption of IPv6 is one of the ...

When you're browsing online, you probably don't pay close attention to the URLs in the address bar of your browser, much less the IP addresses of the sites you're visiting or your own internet ...

Almost from inception, the adoption and usage of the internet have grown at a rapid rate. Various sources estimate a growth rate of around 9% per year to nearly 5 billion users in 2021, more than ...