Table 1. This table illustrates subnet masks. The number after the “/” in the CIDR notation indicates the total number of IP addresses available. Click here to see an enlarged diagram. Understanding ...

Rather than layering security onto networks, the networks themselves and carefully managed authorization policies can hinder attacks, but at an administrative cost. Why is it that over 90% of ...

Linux networking is the backbone for servers, developers, and IT pros who need precise control over connectivity. From mastering IP addressing and subnetting to configuring interfaces and testing with ...

IPv6 increases IP address space to 128 bits, thus increasing the pool of addresses from IPv4's 2^32 to 2^128, or 340,282,366,920,938,463,463,374,607,431,768,211,456 ...

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 ...

This breaks my network into two subnets and the app will show me information such as the number of usable IPs, first and last IP I can assign, the type of network (public or private), and the class of ...

The internet relies on a system of addresses that treats every computer, tablet and smartphone as a distinct device, allowing all of them to communicate with each other. Because many kinds of devices ...

Tired of being the only wireless network in your apartment building without a clever name like “Wu-tang LAN” or “Bill Wi the Science Fi”? Or maybe you want to make your network password more secure so ...

In an upcoming blog I expect to write about configuring a home router, which requires logging on to it. This, in turn, requires knowing the IP address of the router. Non-techies typically don’t know ...