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what is the "24" for? 192.168.1.102/24

Posted on 2012-03-27
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Last Modified: 2012-03-27
does it mean there are 24 computers in the subnet? I forgot.
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Question by:fstinc
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by:Paul Jackson
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ID: 37773012
yes it means exactly that
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by:PhillyUrbs
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ID: 37773026
I think the wikipedia entry will answer your question best.

http://en.wikipedia.org/wiki/Subnetwork#IPv4_subnetting
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by:Paul MacDonald
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ID: 37773028
It refers to the number of bits in the subnet mask.  In this case it's
11111111 11111111 11111111 00000000
which translates to
255.255.255.0
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by:raeldri
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ID: 37773033
24 refers to the number of bits that are 1 (on) in the subnet mask and is a shorter way of writing 255.255.255.0 with this subnet mask there is a possibility of 254 usable IP addresses
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Papertrip earned 100 total points
ID: 37773034
It is the subnet mask, a /24 or 255.255.255.0 has 254 hosts.

http://en.wikipedia.org/wiki/Subnetwork
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Expert Comment

by:smckeown777
ID: 37773054
No, it doesn't refer to the number of computers in the subnet, its as paulmacd said the number of bits in the subnet mask

For your info there are 254 possible IP's for use in a 192.168.1.0/24 subnet -
192.168.1.1 - 192.168.1.254
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