3. Setup your netplan on ubunut as follows: 1. NIC1 / enp0s3 1. IP: 10.0.8.21 2. Gateway4: 10.0.8.1 (or whatever your Debian router internal network IP is) 3. name servers: 8.8.8.8 and 10.0.20.15 4. give it a network name in virtualbox that matches the internal network name to your debian router 5. make sure the cable is set to connected 2. the other networks you will connect to later if needed (for example, if you wanted to be outside the network, you could connect that network card at that time. 3. Note the name of your network in virtualbox as you will need to update debian next to have the same network name. 1. virtualbox network name should be 10.0.8/24 File Machine Help 388 64 Oracle VM VirtualBox Manager 64 64 KaliLINUX 2.6 Powered Off 64 64 Tools ubuntuLTS Powered Off Debian Powered Off ubuntuLTS Clone Powered Off Debian Clone Powered Off New Settings Discard Start General Name: ubuntuLTS Clone Operating System: Ubuntu (64-bit) System Base Memory: 1024 MB Boot Order: Acceleration: Floppy, Optical, Hard Disk VT-x/AMD-V, Nested Paging, KVM Paravirtualization Display Video Memory: Graphics Controller: Remote Desktop Server: Recording: 16 MB VMSVGA Disabled Disabled Storage Controller: IDE IDE Secondary Device 0: [Optical Drive] Empty Controller: SATA Preview 0 ubuntuLTS Clone X