Before i start this article i should say don't worry if you can't understanding it! you can see the fast way!
- In class C address, only 8 bits are available for defining the hosts.
- Remember that subnet bits start at the left & go to the right without skipping bits.
- This means that the only class C subnet mask can be following.
Binary Decimal CIDR
00000000 0 /24
10000000 128 /25
11000000 192 /26
11100000 224 /27
** We can't use /31 or /32 because we have to at least 2 host bits for assigning IP address to hosts
- In class C address, only 8 bits are available for defining the hosts.
- Remember that subnet bits start at the left & go to the right without skipping bits.
- This means that the only class C subnet mask can be following.
Binary Decimal CIDR
00000000 0 /24
10000000 128 /25
11000000 192 /26
11100000 224 /27
** We can't use /31 or /32 because we have to at least 2 host bits for assigning IP address to hosts
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