bro software package provides passive network traffic analyzer, 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 bro
bro is installed in your system.
Make ensure the bro package were installed using the commands given below,
$ sudo dpkg-query -l | grep bro *
You will get with bro package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | bro |
| Version | 2.4.1+dfsg-2build1 |
| Description | passive network traffic analyzer |
| Sub Section | Net |