timberland jackets sale Class A vs Class C Network
So I consider myself to be on the above average side of networking knowledge, yet some how classifications of networking, and the amount of PCs on a network has always given me some kind of gray area.
I know there is differences in the allotted networks, and clients on the different networks based on the amount of available IP addresses and subnets, but I was wondering if someone could spell it out in plain English what the real idea is behind using Class A or Class C schemes.
This may raise more questions, because I some how can’t put together what a network does when you run over 254 clients. I know bridging and subnets come into play, but for the life of me can’t figure out how.
Also, if someone finds source links that actually spell it out, instead of just throwing out a bunch of numbers explaining what each class is, that would be great, Ive already read the Wiki about IP Addresses a few times, an I still can’t put it together. Why? I have no idea.
Roughly, imagine a company with hundreds of offices across all continents, each with hundreds of IPs in use.
10.1. for North America
10.2. for Europe
These would be enterprise wide IPs. Within each office, they may use 192.168. to route local traffic that does not need to be accessible from outside the office.
Since you don’t need this many subnets in home environment (or even small business) it’s not really important if you use 10. or 172. or 192.168. blocks, other than perhaps saving yourself some typing with 10. scheme.
The subnet mask is used to identify which part of the IP is the network identifier and which part is the host. In your example, the first two octets are the network identifier and the last two octets are the host. With the subnet mask of 255.255.0.0 you get a total of 255255 usable addresses. Cheap routers (eg Linksys) will only let you run networks with 255 hosts. Those who think see it as a comedy.