If you are taking a networking course you may have to convert IP addresses into binary and back to calculate subnets. The IP Calculator tool, included in the Ubuntu repositories, can do it for you.
Here is an example of the output:
$ ipcalc 192.168.1.7/24 Address: 192.168.1.7 11000000.10101000.00000001. 00000111 Netmask: 255.255.255.0 = 24 11111111.11111111.11111111. 00000000 Wildcard: 0.0.0.255 00000000.00000000.00000000. 11111111 => Network: 192.168.1.0/24 11000000.10101000.00000001. 00000000 HostMin: 192.168.1.1 11000000.10101000.00000001. 00000001 HostMax: 192.168.1.254 11000000.10101000.00000001. 11111110 Broadcast: 192.168.1.255 11000000.10101000.00000001. 11111111 Hosts/Net: 254 Class C, Private Internet
In Ubuntu, install the package ipcalc to get IP Calculator. Or click here on Ubuntu 7.10 to install it automatically.
Enjoyed this post? 
Cool app. I just installed this on my work PC.
i want to know its ip address + how can i open it. when proxy and site all are blocked
I AM REALLY WANT TO KNOW THOROUGHLY ABOUT THE IP ADDRESS.I MEAN, HOW TO CALCULATE THE IP ADDRESS AND HOW TO CONSIDER THE STEP AND STONE.
FOR EXAMPLE, WHICH ONE WILL BE FIRST DETERMINE THE IP ADDRESS CALCULATION.
WOULD YOU HAVE THE WAY THIS PROBLEM, I WOULD LKE TO ABLE TO GET THE LEARNING METHOD.PLEASE GUIDE TO ME.
IF YOU HAVE THE IDEA, WOULD YOU ABLE TO REPLY ME AS SOON AS POSSIBLE.I WILL BE WAITING FOR YOUR RESPONSE TIME.
Good staff!
i just want to know how to calculate the class c in the ip address