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CALCULATING SUBNET MASKING

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Calculating Subnet Masking:-
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1. Network Id / Subnet address

2. Subnet Mask

3 .Interface

So with the help of these we can figure out where to send a packet.

IP address 201.14.78.65                   subset mask 255.255.255.224

 IP address 11111111.11111111.11111111.11100000
 Subnet Mask 11001001.00001110.01001110.01000001
 Subnet address 11001001.00001110.01001110.01000000
                       201      .    14        .   78        .   64

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