strongswan.conf

# strongswan.conf - strongSwan configuration file
#
# Refer to the strongswan.conf(5) manpage for details
#
# Configuration changes should be made in the included files

charon {
	load_modular = yes
	plugins {
		include strongswan.d/charon/*.conf
	}
	# https://kevinlocke.name/bits/2017/08/26/strongswan-sonicwall-payload-type-id-v1-was-not-encrypted/
	accept_unencrypted_mainmode_messages = yes
}

include strongswan.d/*.conf