Now we need to run the “Network Connection Manager”. If not, it is installed via the following command which also adds the proper GUI integration: snap install network-manager network-manager This is usually installed on most Ubuntu Desktops. In order to do this, we need a component called “NetworkManager” installed. To start with, I address how to configure a VLAN on an Ubuntu Desktop through the GUI. I show how to configure VLANs on Ubuntu and Windows for your physical Ethernet adapter. This tutorial assumes that the switch port profiles to which your homelab PCs are connected is unrestricted. Notably, companies set a VLAN profile on designated switch ports and connected computers are unaware they are even on a VLAN. Most tutorials online focus on configuring VLANs on managed routers and switches. VLANs improve not only security, but performance because they allow traffic to be isolated. VLANs allow more than one network to run on a single cable and on a single network adapter. TCP/IP is a broadcast based protocol and this means that all systems on a particular subnet hear communication from one another.
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