Network Address Calculator

Netmatics Subnet Address Calculator is a simple but versatile utility that applies a subnet mask to an IPv4 address to calculate following useful information about the subnet
– Network or the subnet address
– Number of hosts addresses in the subnet
– Address range, i.e. the IP address of the first and last hosts
– Broadcast address
– Wildcard Mask that would match all the hosts in the network and useful in network access control lists.

Here are couple of examples that show the basic use of the tool.

Example 1: Find the host network address for host/mask 206.123.14.131/255.255.255.192

Example 2: Are the following host addresses and masks on the same subnet

1. 172.16.48.3 / 255.255.240.0

2. 172.16.62.82 / 255.255.240.0

3. 172.16.66.23 / 255.255.240.0

Below are the 3 calculated outputs from the Analyzer that show the first 2 hosts are in the same subnet while the third is in different subnet.

Note the output table for 172.16.48.3/20 shows that the containing subnet 172.16.48.0/20 has host address range from 172.16.48.1/20 to 172.16.63.254/20.  This range also shows that 172.16.62.xxx/20 will be in the subnet where as all addresses 172.16.66.xxx/20 are outside the range.

About Furrukh Fahim
A software engineer and a carpenter interested in making useful things, be it a software solution or a pergola.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: