ok, well i spent about 2 months subnetting this semester before i, or anyone else in the calss understood it, so first of all i think you should go study it a bit. lol
But, ok, let me see if i can do it
ok thre are 3 main subnet masks u use, 255.0.0.0, 255.255.0.0, and 255.255.255.0
besides these three, there are two toher class d, and class e, where class d is used only in test enviroment s really and those ips never reach the internet. the E class address's are used mainly for broadcasts and stuff, cant REALY remmember exactly, but you wont se these around. and those last two does not have a 255 mask to their own either.
ok on to the acual subnetting, ill send you a chart i use. ill add it as a file.
what ever you are going to subnet depends on either how many hosts you want, per subnet or how man y subnets you want per netowrk, and you can decide this from the chart.
ok, wel it is christmas morning, and well i am oging to go enjoy it, so i dont really have time to explain this fully, so i will try to find something for you and help you out moreso later, PM me and ill gladly help
Ches
Have a Great Christmas!!!