Name of the software:
Why we should include this into the repository, i.e. what does it do that the alternatives do not?
It is a (quote) "VPN plugin for NetworkManager 1.8 and later which provides support for L2TP and L2TP/IPsec (i.e. L2TP over IPsec) connections."
Is it open source?
If it is open source, please provide a link to the most up to date, versioned source tarball/zipfile
Compatible with NetworkManager 1.2.0 and later: https://github.com/nm-l2tp/NetworkManager-l2tp/archive/1.2.12.tar.gz Compatible with NetworkManager 1.8.0 and later: (dev Version) https://github.com/nm-l2tp/NetworkManager-l2tp/archive/1.7.0-dev.tar.gz