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 ...

It would have been so easy if the early Internet and TCP/IP network designers had made IPv6 backward compatible with IPv4. They didn't. In 1981, IPv4's 32-bit 4.3 billion addresses look more than ...

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 ...

Today, the standard methods for moving the network/host address boundary are variable-length subnet masking (VLSM) for host addressing and routing inside a routing domain, and classless interdomain ...

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 ...

In this chapter, you will learn about the addressing used in IPv4 and IPv6. We'll assign addresses of both types to various interfaces on the hosts and routers of the Illustrated Network. We'll ...

Many enterprises use OSPF version 2 for their internal IPv4 routing protocol. OSPF has gone through changes over the years and the protocol has been adapted to work with IPv6. As organizations start ...

Today, the last current-generation Internet addresses were divvied up at the highest level. Here's a look at what happens next in rebuilding the Net with the newer IPv6. Stephen Shankland worked at ...

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 ...

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 ...