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 ...

Subnetting a Class C network can be a tricky process to master. From MCSE to CCNA to RHCE to CNE, you’ll have to know it and know it well. Todd Lammle walks you through clear instructions and ...

One of the most prevalent problems with IP networks occurs when IP subnet masks are incorrect. This seems to happen frequently because the concept of the subnet mask is not understood accurately. In ...

To understand how subnetting works, you first must have a good basic understanding of IP addresses. An IP address is set of binary octets broken into quads. That definition may not have made any sense ...

What is the purpose of the IP subnet mask and how does it work? Scott, Charlotte, NCHello Scott. The answer to this question has two parts. The first involves the interpretation of the IP address. IP ...

If computers in an open network talk freely with one another and two computers start talking at the same time, you have a “data collision.” Collisions may be arbitrated via Carrier Sense Multiple ...

The bits in the mask identify both hosts and subnets. The more hosts, the fewer subnets; the more subnets, the fewer hosts can be individually addressed. These bits become a tradeoff based on the ...

Have you learned to think and dream in hex yet? That is what you are going to have to look forward to as we transition to using IPv6. Because we will be working in hexadecimal numbers we may need a ...

I have a networking situation where some tools can or can't communicate between two devices on the same LAN but differing subnet masks (it's an error, will be corrected). The question is why do some ...

So, for example, if I have a VPN road warrior set up, and I'm somewhere where the network is 10.0.0.1/24 but the VPN tunnel network happens to be 10.0.0.1/30? Changing the client network address is ...