strongswan-ext/testing/tests/ikev2/alg-chacha20poly1305/hosts/carol/etc/strongswan.conf

# /etc/strongswan.conf - strongSwan configuration file

charon {
  load = chapoly aes des sha1 sha2 md5 pem pkcs1 gmp ntru random nonce x509 curl revocation hmac stroke kernel-netlink socket-default updown

  send_vendor_id = yes
}