suppose I have three ip addresses
A:172.16.1.1
B:172.16.2.1
C:172.16.3.1
Now, If I want to put B and C in the same network and A in a different network, which subnet mask will i have to use? how will I calculate it?
suppose I have three ip addresses
A:172.16.1.1
B:172.16.2.1
C:172.16.3.1
Now, If I want to put B and C in the same network and A in a different network, which subnet mask will i have to use? how will I calculate it?
172.16.1.0/24
for A172.16.2.0/23
for B and CThis question will tell you how to calculate it.
IP Address 10.10.15.10/16
Step 1) Translate the IP address 4 octets into binary:
00001010.00001010.00001111.00001010
Step 2) Translate the Subnet mask 4 octets into binary, which is easy using CIDR:
11111111.11111111.00000000.00000000
Step 3) Perform the AND
operation on the two addresses. This will give you the Network Address for the subnet. AND
rules are:
1 AND 1 = 1
, O AND 1 = 0
, 0 AND 0 = 0
, 1 AND 0 = 0
00001010.00001010.00001111.00001010
11111111.11111111.00000000.00000000
===================================
00001010.00001010.00000000.00000000
Step 4) Convert it back to decimal:
10.10.0.0