Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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What does it mean "class of IP's" or "class a, b, c, etc.".
How does it all work and if you can provide me a link to some sort of tutorial / explanation that would be great. Tried a Google search but I got strange results.
Note that most things nowadays use CIDR, Classless Inter-Domain Routing. This basically subdivides the address space into a finer granularity. It also means that the class notations are nearly meaningless.
I seriously doubt that you have a class A address. If you did, you wouldn't be here asking about it. There can only be 126 class A addresses and each one could support 16,777,214 hosts. I don't think you have that.
What you probably have is a class A address that has been split into lots of smaller pieces and you have one of those pieces. To put it another way, if your netmask is not 255.0.0.0, then you are not class A.
I seriously doubt that you have a class A address. If you did, you wouldn't be here asking about it. There can only be 126 class A addresses and each one could support 16,777,214 hosts. I don't think you have that.
classes of the IP space are defined by their first bits, not by their size. An IP like 15.243.45.23 is a Class A address regardless of the subnetting in effect. No organisation use a full Class A range without subnetting (exception 10.x.x.x), but their addresses are still Class A addresses.
chadl: You are right you are on a Class A IP, this is however split into sub networks, one which your ISP has bought and lets you use one of those addresses.
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