connections {

   alice : connections.nat-t {
      remote {
         id = alice@strongswan.org
      }
      children {
         nat-t {
            mark_in = 10
            set_mark_in = %same
            mark_out = 10
         }
      }
   }

   venus : connections.nat-t {
      remote {
         id = venus.strongswan.org
      }
      children {
         nat-t {
            mark_in = 20
            set_mark_in = %same
            mark_out = 20
         }
      }
   }

   nat-t {
      local_addrs = 192.168.0.2

      local {
         auth = pubkey
         certs = sunCert.pem
         id = sun.strongswan.org
      }
      remote {
         auth = pubkey
      }
      children {
         nat-t {
            local_ts = 10.2.0.0/16
            remote_ts = 0.0.0.0/0

            updown = /usr/local/libexec/ipsec/_updown iptables
            esp_proposals = aes128gcm128-x25519
         }
      }
      version = 2
      proposals = aes128-sha256-x25519
   }
}
