vyos@R3# run show version all | match strongswan ii strongswan 5.7.2-1 all IPsec VPN solution metapackage
But in this case, we have an issue with command
vyos@R3# sudo ip link add tun0 type gretap local 0.0.0.0 RTNETLINK answers: File exists
In old scripts, tunnels were created by following commands
ip tunnel add tun0 local 0.0.0.0 mode gre key 1 ttl 255 tos inherit ip link set tun0 multicast on allmulticast on up ip addr add 10.0.0.4/24 broadcast + dev tun0 ip tunnel cha tun0 local 0.0.0.0