# /etc/NetworkManager/system-connections/vpn-Name
# Initiaded with:
# nmcli connection add type vpn ifname tun0 vpn-type l2tp
#
[connection]
id=vpn-<VPN_NAME>
uuid=<SOME_UUID>
type=vpn
permissions=
secondaries=

[vpn]
gateway=<VPN_SERVER_IP>
password-flags=0
ipsec-enabled=yes
ipsec-psk=<IPSEC_SHARED_SECRET>
user=<VPN_USERNAME>
service-type=org.freedesktop.NetworkManager.l2tp

[vpn-secrets]
password=<VPN_PASSWORD>

[ipv4]
dns-search=
method=auto
never-default=true
#route1=192.168.11.0/24,192.168.11.237
#route2=172.31.0.0/16,192.168.11.237

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=ignore