The shortage of IPv4 addresses has reached a critical stage, according to the registries that allocate internet numbers around the world. The Number Resource Organization (NRO), which represents the ...

A vibrant market for buying and selling IPv4 addresses is emerging, and policymakers are clarifying the rules associated with how network operators can monetize this precious Internet addressing ...

In February 2011, the global Internet Assigned Numbers Authority (IANA) allocated the last blocks of IPv4 address space to the five regional Internet registries. At the time, experts warned that ...

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 ...

It's official: the IPv4-based internet is full, or at least it will be within a few weeks. There are no more IPv4 addresses left to allocate, after APNIC, the Regional Internet Registry (RIR) for 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 ...

Network Address Translator, or simply called NAT, is an important part of the device between your LAN and the Internet. It could be located in the router you use to connect the local network to the ...