babeld : A loop-avoiding distance-vector routing protocol ( http://www.pps.univ-paris-diderot.fr/~jch/software/babel/ )
networkmanager-l2tp : NetworkManager L2TP plugin ( https://github.com/seriyps/NetworkManager-l2tp )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a ago
For Paludis use this rsync : rsync://gentoo.zugaina.org/ago-portage
If you have a problem : ycarus(-at-)zugaina.org