here is good table, demonstrates subnets.
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What does the /24 mean when used in an ip address like - 192.168.x.x/24
What does the /24 mean when used in an ip address like - 192.168.x.x/24?
so someone tells me the have an encryption domain of 192.168.xxx.xxx/24. what is the /24? where did they get that number from, whats it represent, and how do i figure out what mine is?
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Answers
It means how many "1" bits are in the left end of the 32-bit subnet mask.
It signifies the "network" part of the address.
Here's a couple of examples:
192.168.1.0/24 or 192.168.1.xxx and 255.255.255.0
Where the 255.255.255.0 represents the subnet mask split into octets:
11111111 11111111 11111111 00000000
So, 192.168.1 is the network address and xxx represent the range of network (0) broadcast (255) and host addresses (1-254).
192.168.1. 128/27 or 192.168.1.128 is the network address and
255.255.255.224 is the subnet mask.
11111111 11111111 11111111 11100000
192.168.1.128 is the network address
192.168.1.159 is the broadcast address
192.168.1.1-192.168.1.158 is the range of host addresses.
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by: omarfaridPosted on 2008-02-25 at 11:30:27ID: 20978422
The IP address is 4 bytes or 32 bits. It is divided into networkid and hostid. The /24 tells how many bits of the most significant bits are networkid, which is 3 bytes 192.168.x