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James Fry

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Subnet Size Recommendations

All, quick question.  For a long time, I have always seen that a class C subnet should be .24 or smaller.  However, I've never really seen a reason or reasons why that is.  Any insight from anyone?
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For a long time, I have always seen that a class C subnet should be .24 or smaller.  However, I've never really seen a reason or reasons why that is.
Since a class C address has an 8-bit host field, and if you subnet it, the host field would be smaller, that would be why.
Well, that's /24 or "smaller" subnets as in /25, /26,/27, etc.  Class C subnets can't be bigger - as in /23.

But, the use of "classes" is only an irritating anachronism for me.  The subnet masks don't care - just 1's and 0's that are in contiguous groups.
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