currently generated config by nmstate:
interfaces:
- ipv4:
enabled: false
ipv6:
enabled: false
name: tun0
profile-name: tun0
state: down
routes:
config:
.....
old style config:
ONBOOT=yes
NM_CONTROLLED='no'
DEVICE=tun0
TYPE=IPIP
BOOTPROTO=none
MY_INNER_IPADDR=x.x.x.x/24
MY_OUTER_IPADDR=y.y.y.y
RESOLV_MODS=no
PEERDNS=no