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 ...

Many in the industry realize that as we migrate to IPv6 there will be a day when IPv4 is not needed anymore. However, that transition seems daunting and may take decades. In the meantime, ...

IP address marketplace IPv4.Global has started offering loans on terms that consider public IPv4 network addresses as valid ...

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 ...

The IPv6 transition in your organization, more likely than not, involves bringing IPv6 into a mix that also includes IPv4. Here’s a look at what that means and how to make it work. The original title ...

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 ...

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 ...

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 ...

Thomas Edison, in 1882, opened a power station on Pearl Street in New York city to supply the densely populated Manhattan island with DC power [1]. DC was the logical power distribution standard at ...

I'm looking for more information about having IPv4-only devices (embedded, legacy, etc) on a network that is otherwise IPv6-only, with IPv6-only Internet access. It's academic at this point, but I can ...