Use subnet chart
address class?
default mask?
how many subnets do we need?
subnet mask to use?
what are the network/subnet addresses (counter)?
what are the host addresses?
Second subnet address is the counter
Last subnet address is the mask -counter
Counter is 256 - mask
Supernet
How many normal subnets in group
# of subnets = counter
8 class C 255.255.248.0
IP Classless VLSM
last subnet used for next group
ANDING binary logical, evaluates to true & false
same= true different=false
1+1=1 0+0=1 1+0=0 0+1=0
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