arpwatch software package provides Ethernet/FDDI station activity monitor, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install arpwatch
arpwatch is installed in your system.
Make ensure the arpwatch package were installed using the commands given below,
$ sudo dpkg-query -l | grep arpwatch *
You will get with arpwatch package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | arpwatch |
| Version | 2.1a15-1.2 |
| Description | Ethernet/FDDI station activity monitor |
| Sub Section | Admin |