natpmp-utils software package provides portable and fully compliant implementation of NAT-PMP (userland tool), 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 natpmp-utils
natpmp-utils is installed in your system.
Make ensure the natpmp-utils package were installed using the commands given below,
$ sudo dpkg-query -l | grep natpmp-utils *
You will get with natpmp-utils package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | natpmp-utils |
| Version | 20110808-3ubuntu2 |
| Description | portable and fully compliant implementation of NAT-PMP (userland tool) |
| Sub Section | Net |