charon-systemd.journal {}
	Section to configure native systemd journal logger, very similar to the
	syslog logger as described in LOGGER CONFIGURATION in
	**strongswan.conf**(5).

charon-systemd.journal.default = 1
	Default loglevel.

	Specifies the default loglevel to be used for subsystems for which no
	specific loglevel is defined.

charon-systemd.journal.<subsystem> = <default>
	Loglevel for a specific subsystem.