Join Bill Ferguson for an in-depth discussion in this video Exercise files, part of Subnetting in Your Head.
- [Instructor] We've provided two exercise files that you can use to practice and to help make that mental imprint. The first one is called The DNA of IP Addressing, and it illustrates how the original designers set up the classful system and the rules that were used as part of the classful system. And then the second tool is called The Subnetting Worksheet.
It has the four octets and the bit values, but it also has the four-step method built right into the worksheet so that you can practice, practice, practice. Feel free to make as many copies of these as you want and use them to help make the mental imprint so that you won't need any of them any more.
Discover how IP addresses are constructed and how to understand them better by relating them to a picture rather than converting binary numbers or memorizing charts. Learn the benefits that subnetting in your head provides in every aspect of IT networking, including routing protocols, access control lists, and network address translation. Then walk through Bill's four-step method, which leverages the rules that were used to create the original classful IP addressing schemes. Using this method, students can learn to "see" the IP addresses for each subnet. Watch the technique in action, and then practice what you've learned using the audio guides in chapter five, which provide auditory cues as you subnet in your head.
- The benefits of subnetting
- Class A, B, and C IP addressing
- The four-step subnetting method
- Troubleshooting IP topologies and IP host address ranges
- Audio cues for the four-step method