There is a workaround to get l2tp-ipsec on 15.04 but its not very elegant.
I uninstalled strongswan and installed an old openswan trusty .deb package. I then found .deb files of the old l2tp-ipsec-vpn and l2tp-ipsec-vpn- daemon from trusty by Werner Jaeger. I installed those and was able to connect. However, this took quite a bit of time to get working properly and required installing deprecated packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1457078 Title: L2TP client support for PSK removed from 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-strongswan/+bug/1457078/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs