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 ...

Public IPv4 now carries a clear operating cost in the cloud. AWS began charging $0.005 per public IPv4 address per hour on ...

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 the world of networking, most people are familiar with IPv4. These numerical labels, like 192.168.2.1, have been used to identify devices for decades and have been the primary addressing scheme ...

Global Unicast Addressing, Routing, and Subnetting: This section introduces the concepts behind unicast IPv6 addresses, IPv6 routing, and subnetting using IPv6, all in comparison to IPv4. IPv6 ...

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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 ...

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 ...