Index: strongswan-5.6.2/init/systemd/strongswan.service.in
===================================================================
--- strongswan-5.6.2.orig/init/systemd/strongswan.service.in	2017-02-07 08:04:04.000000000 +0100
+++ strongswan-5.6.2/init/systemd/strongswan.service.in	2018-04-17 16:53:57.546334751 +0200
@@ -9,3 +9,4 @@ Restart=on-abnormal
 
 [Install]
 WantedBy=multi-user.target
+Alias=ipsec.service