Category: Networking 101

Address Class Network ID Default SN Mask # Networks # Hosts Class A 1-126.0.0.0 (0) 255.0.0.0 126 16,777,214 Class B 128-191.0.0.0 (10) 255.255.0.0 16,384 65,534 Class C 192-223.0.0.0 (110) 255.255.255.0 2,097,152 254 Class A Loopback Address: 127.0.0.0 Private IP Addresses Class A 10.0.0.1 – 10.255.255.254 Class B 172.16.0.1 – 172.31.255.254 Class C 192.168.0.1 – 192.168.255.254

The Network Access Layer it is the layer responsible for interfacing with your network’s architecture- something the everyday user can’t see. As we can’t physically interact with the Network Access Layer, how it works often eludes networking students. If you haven’t already, you may wish to read the previous section on encapsulation- we will be reviewing part of the encapsulation […]

In the previous section we reviewed the TCP/IP and OSI model. For the sake of clarity, we will be using the TCP/IP model to demonstrate encapsulation, as compared to the OSI model. If you are still struggling with grasping concepts of the TCP/IP model you may wish to view the previous section once more. Otherwise, onward to the encapsulation process! […]

TCP/IP , or Transmission Control protocol/Internet Protocol, is literally the backbone of internet and network communication. The concepts of TCP/IP are difficult to grasp without previous experience, so don’t be dismayed if it doesn’t click instantly. To better help you out, we’ll start from the very beginning- with a definition of just what a network is. Networks, Protocols, and Suites, […]

In the previous section, we learned that TCP/IP is a suite of protocols and rules. It allows us to communicate with other computers and devices over a connection oriented network. What we didn’t cover was the TCP/IP and OSI model- which helps us understand the TCP/IP suite in a manner of layers and modules. The TCP/IP Model and Modular Design […]