Linux VM Zyxel Router Ipsec Config

conn <<SITE-NAME>>
type=tunnel
authby=secret
auth=esp
esp=3des-md5-96
left=80.74.16.239
leftnexthop=<<LOCAL_DEFAULT_GATEWAY_ADDRESS>>
leftsubnet=10.20.0.0/16
right=<<REMOTE_SITE_WAN_IP_ADDRESS>>
rightnexthop=<<REMOTE_DEFAULT_GATEWAY_ADDRESS>>
rightsubnet=<<LAN-SUBNET>><<MASK>>
rightsourceip=<<REMOTE_SITE_WAN_NaTTed_IP_ADDRESS>>
keyingtries=3
pfs=no
rekey=yes
auto=start
keyexchange=ike
ikelifetime=24h
keylife=24h
dpdaction=restart
dpddelay=30
dpdtimeout=120

eq :

conn cvs232
type=tunnel
authby=secret
auth=esp
esp=3des-md5-96
left=80.74.16.239
leftnexthop=80.74.16.60
leftsubnet=10.20.0.0/16
right=85.234.66.231
rightnexthop=85.234.65.79
rightsubnet=10.20.55.64/27
rightsourceip=85.234.66.231
keyingtries=3
pfs=no
rekey=yes
auto=start
keyexchange=ike
ikelifetime=24h
keylife=24h
dpdaction=restart
dpddelay=30
dpdtimeout=120