NetworkManager-l2tp from home:j-engel project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:j-engel/openSUSE_Tumbleweed/home:j-engel.repo zypper refresh zypper install NetworkManager-l2tp