Monday, 25 June 2018

255.255.255.0

Do the numbers 255.255.255.0 mean anything to you? Or is it just a set of complex numbers that helps define a computer network?

Let us find out more about 255.255.255.0 and its meaning in a computer network.

Subnetting and 255.255.255.0


The most common subnet mask used for connecting Internet Protocol (IPv4) network on computers. It is used mostly for home network routers.

A subnet mask helps different devices connected to a network like the router, modem, computers, etc. (local network) communicate with remote addresses.

The traditional subnets are partitioned into one of the five classes (Class A/B/C/D/E). This depends on the value of the IP address of the number. The subnet mask converts into a 32-bit binary value.



This value is as follows:

11111111 11111111 11111111 00000000


The ‘0’ in the above value mask span the IP range of the subnet.

For example, a computer’s IP address is 192.168.1.256, the subnet mask is 255.255.255.0. So, the computer and every other device in the same network will have the same IP address with the last three numbers that will vary. Similarly, the computer having a subnet mask is 255.255.0.0, and then all computer in the local network will be 192.168.xxx.xxx.


Use of Subnetting


Subnetting is very useful for home networks. However, it is mostly used for larger networks having more than 255 computers in the network.  

References:

1.https://www.lifewire.com/255-255-255-0-ip-networking-818371

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