gistfile1.txt

conn gcp-to-s7
    type=tunnel
    authby=secret
    left=207.154.219.69
    leftid=207.154.219.69
    leftsubnet=10.19.0.0/24
    leftfirewall=yes
    right=5.200.46.37
    rightsubnet=172.23.16.0/24
    auto=add
    forceencaps=yes
    ikelifetime=60m
    keylife=20m
    rekeymargin=3m
    keyingtries=1
    keyexchange = ikev2
    ike = aes256-sha256-modp2048,aes256-sha1-modp1024,aes128-sha1-modp1024!
    esp = aes256-sha256-modp2048,aes256-sha1-modp1024,aes128-sha1-modp1024,aes256-sha256,aes256-sha1,aes128-sha1!