Using Debian from
https://gns3.com/marketplace/appliances/debian-2
need to be done each time the GNS3 VM is started from cold boot.
vlan database
vlan 80 name vlan80
exit
vlan database
vlan 81 name vlan81
exit
sh ip int br
first manually connect to internet through cloud via
dhclient -v ens1
resolvconf doesnt work properly need to
apt remove --purge resolvconf
apt install -y systemd-resolved netplan.io
#apt install -y netplan-generator
poweroff
Only after this should apply netplan configuration.