System removes custom routes after suspend and resume.
When I add a route
ip route add 126.96.36.199 via 188.8.131.52
It is removed after suspend and resume. This is annyoing, because it e.g. removes host routes from openvpn, which renders the vpn connection unusable afterwards.
I did confirm the bug in debian and ubuntu and in debian I confirmed that it does not happen with sysvinit.
What do I need to configure, such that systemd does not touch the routing table at all?
I have some scripts which do quite a bit of network configuration and would like that no other part of the system changes the configuration.