Comment 49 for bug 264691

I've posted a summary of current NetworkManager-l2tp known issues and workarounds for Ubuntu and Debian here :
  https://github.com/nm-l2tp/network-manager-l2tp/issues/12

I haven't created a new network-manager-l2tp PPA because because of the strongSwan AppArmor name space issue involving NetworkManager and also some Ubuntu 16.04 users have had an issues with the system xl2tpd, but not with a locally built copy. Unfortunately I haven't been able to reproduce the xl2tpd issue since I changed computers a couple of months ago.

I hope to submit a network-manager-l2tp package to Debian once the strongSwan AppArmor issue has been resolved.