gip software package provides IP calculator for GNOME desktop environment, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gip
gip is installed in your system.
Make ensure the gip package were installed using the commands given below,
$ sudo dpkg-query -l | grep gip *
You will get with gip package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | GNOME |
| Package | gip |
| Version | 1.7.0-1-3ubuntu1 |
| Description | IP calculator for GNOME desktop environment |
| Sub Section | GNOME |