ifenslave-2.6 software package provides transitional package, use ifenslave, 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 ifenslave-2.6
ifenslave-2.6 is installed in your system.
Make ensure the ifenslave-2.6 package were installed using the commands given below,
$ sudo dpkg-query -l | grep ifenslave-2.6 *
You will get with ifenslave-2.6 package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | ifenslave-2.6 |
| Version | 2.7ubuntu1 |
| Description | transitional package, use ifenslave |
| Sub Section | Net |