@olivierlambert

https://gns3.com/

Its a networking simulator

https://docs.gns3.com/1c2Iyiczy6efnv-TS_4Hc7p11gn03-ytz9ukgwFfckDk/index.html

I used this script to create one in a Ubuntu VM. (Without the vpn)

@olivierlambert
GNS3 Server - (qemu and dymaips I think)