Okay, first assume that I am completely f*****g stupid BUT, desperate to understand subnet masking. I'm reading the MCSE TCP/IP guide (for some reason I enjoy it) and have reached the Subnet chapter.

For one to be able to create multiple logical networks within a Class A, B, or C network, one needs to know the principle of subnet. Without using subnets, one could only use a single network no ...

I pretty much always just work with small networks, 50 network devices or so at absolute most. These networks are all pretty much 192.168.1.1/24 networks. Which I understand means the subnet mask is ...

Subnetting and creating subnet masks is often outsourced to consultants, but doing it yourself can be both challenging and rewarding. In the IT world, specifically in networking, there aren’t many ...

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 ...

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 ...

The following summarizes how networks, subnetworks and hosts are identified in the TCP/IP protocol. An IP address is first divided between networks and hosts. The host bits are further divided between ...