networking - What are the essentials of a Subnet mask?

Thursday, 12 July 2018

networking - What are the essentials of a Subnet mask?

What is the use of a subnet mask?

What is the below output conveying to the user?

 Connection-specific DNS Suffix  . :
 IP Address. . . . . . . . . . . . : 192.168.1.2
 Subnet Mask . . . . . . . . . . . : 255.255.255.0
 Default Gateway . . . . . . . . . : 192.168.1.1

Basically, why do I need Subnet mask when I have my IP?

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