From MEPIS Documentation Wiki
A Curses user interface for configuring network interfaces with ifupdown. Ceni can manage basic network interface stanzas for ethernet and wireless devices. This console-based network management tool is very useful for managing wired and wireless networks, and is especiall useful for hidden networks.
To get ceni, enable the MEPIS Community Repository (CR) for the release of SimplyMEPIS that you are using. Use the synaptic package manager to search for ceni once the appropriate CR has been established and refreshed in the package manager, then install the package.
The fast way to access Ceni is to open the terminal/konsole and type
You will be asked to enter your root password.
Tips and hints
The antiX forumhas useful discussions about ceni.