IP addressing was designed from the ground up for flexibility in supporting LANs and WANs of any size. The first step towards understanding this flexibility is to understand network IDs and how they interact with a subnet mask to get packets delivered to the right system.
but some of them have kind of like a special use. … So, in this episode, what I want to do … is talk about special IP addresses. … Now, one thing I'm going to talk about are … the Class Ids one more time. … I'm going to talk about it in an old fashioned way … that I'm pretty sure that CompTIA won't talk about, … but let's just say, … except this time with a bit of an old fashioned bend. … In other episodes, … I mentioned that a Class A address is any value … where you only have assigned the first numbers. … So, for example, … if I was given a 55 dot zero, dot zero, dot zero, … that would be a Class A address. … However, according to the original rules of the internet, … only Class A's could start with a one up to 126. … If you needed a Class A address, … it was going to start with one of these numbers. … Class B addresses started from 128 … and then they would give you some number here … and then you had the next two numbers, … all the way up to 191 … and they would give you a second number …
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- How TCP and IP work together
- Special IP addresses
- Port numbers
- Working with DNS
- Basic and advanced router configuration
- Troubleshooting networks
- Connecting to a Wi-Fi network
- Repairing wireless connections