iptstate software package provides top-like interface to your netfilter connection-tracking table, 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 iptstate
iptstate is installed in your system.
Make ensure the iptstate package were installed using the commands given below,
$ sudo dpkg-query -l | grep iptstate *
You will get with iptstate package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | iptstate |
| Version | 2.2.5-1build1 |
| Description | top-like interface to your netfilter connection-tracking table |
| Sub Section | admin |