When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Table 1. This table illustrates subnet masks. The number after the “/” in the CIDR notation ...

IP addresses are like opinions… everyone has one. But not every IP address is created equal. Some IP addresses are dynamic, which means they automatically change, based on router settings. Also: ...

An IP address is a way for every device on a network to be seen. Without IP addresses, it would be impossible for those devices to be located. Think of your computer's IP address like your house's ...

If your company network is having problems and you need to troubleshoot it, you also need to know some basic information about the computers on the network. Internet Protocol is the underlying ...

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 ...

I have a user who's machine is not pingable on our network, using computer hostname or associated IP. However, in troubleshooting this, I see that the IP the machine actually has does not resolve to ...

Many a time IT admin needs to set up multiple IP addresses to the same network adapter. Situations such as hosting multiple SSL sites can speed up traffic exchanges, which can bypass the gateway in ...

If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

When you set up the first network for a small business, you may not give much thought to how the company's growth will affect your IP addressing scheme. By planning ahead at the beginning, you can ...

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 ...