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If i'm designing a new subnet mask for a class C IP that will have 5 subnets that means I need to borrow 3 digits since 2^3-2 > 5. My question is, how many additional subnets do we have?

would it be 2^3-2 = 6 --> 6-5 = 1 additional subnet

or

would it be 2^3 = 8 --> 8-5 = 3 additional subnets

Muu
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1 Answers1

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For 6 usable host in /29 (255.255.255.248) subnet (borrowing 3 bits) would be required.

2^3 - 2 = 8 - 2 = 6

PS: Even we can use First IP (Network IP) is some systems too

engineerbaz
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