install packages first:
yay -S xl2tpd strongswan networkmanager-l2tp
ref: https://wiki.archlinux.org/index.php/Openswan_L2TP/IPsec_VPN_client_setup
install packages first:
yay -S xl2tpd strongswan networkmanager-l2tp
ref: https://wiki.archlinux.org/index.php/Openswan_L2TP/IPsec_VPN_client_setup