Steps to Calculate the Subnet Address from IP Address and Subnet Mask
Below are the steps to calculate the subnet address from an IP address and subnet mask.
- Find take the given IP address and subnet mask and convert into its binary form.
- Then perform bitwise AND of the subnet mask and given IP address.
- The resultant gives the subnet address of given IP address.
Example
Consider an IP address of a network is X is 200. 1. 2. 10 and the subnet mask of the network is 255.255.255.128 then find the subnet address of given IP.
Solution:
Given IP address = 200. 1. 2. 10
Given Subnet mask = 255. 255. 255. 128
First convert the above IP address and subnet mask into binary form.
IP address = 11001000. 00000001. 00000010. 00001010
Subnet Mask = 11111111. 11111111. 11111111. 10000000
Now perform bitwise AND operation.
We get, the subnet address as 11111111. 11111111. 11111111. 00000000
Now convert the subnet address into decimated form.
Subnet address = 200. 1. 2. 0
So, the subnet address of given IP address and subnet mask is 200. 1. 2. 0
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