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Variable Subnetting

jtmullis82
Level 1
Level 1

when I run the command " show ip route " right before it shows my routes there is a line that reads:

10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks 

can anyone explain what this means to me ?

1 Reply 1

Collin Clark
VIP Alumni
VIP Alumni

jtmullis82 wrote:

when I run the command " show ip route " right before it shows my routes there is a line that reads:

10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks 

can anyone explain what this means to me ?

10.0.0.0/8 is the classful network. You can break the subnet down to smaller IP networks. When you do this it is call subnetting. Your output is telling you that you a have multiple IP subnets under the classful network of 10.0.0./8. Directly underneath it will list the subnets in that class.

Hope it helps.

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