IP Pool and Network Modes

Virtlix supports five VM networking modes - NAT, Bridged, MacVTap (Direct), Routed (Proxy ARP), and Open vSwitch - but you rarely need to pick one by hand. Add an IP under IP Pool and leave it on Auto-detect, and Virtlix works out the right mode on its own by inspecting your host's actual networking. NAT - guests share the host's IP via NAT, and you forward specific ports in as needed. The install-time default; works on any server regardless of what IP block your provider gave you. Bridged - guests attach directly to a Linux bridge (commonly br0) and get their own public IP straight from your provider's routed range, with no port-forwarding involved. Auto-detected when your host's primary interface is already part of a bridge. MacVTap (Direct) - guests attach straight to a physical interface without a full bridge, each with their own MAC address. Auto-detected when a new IP shares your host's own subnet - a genuine shared broadcast domain, where any MAC works normally. Routed (Proxy ARP) - for providers that route an additional IP to your server's one known physical MAC rather than a real shared network (Vultr, Hetzner, and OVH without a requested virtual MAC). A plain MacVTap MAC is invisible to that kind of network and the VM would have no connectivity at all. Virtlix instead sets up a small isolated bridge plus a host route and proxy ARP, so the host forwards traffic using its own already-known MAC - it never touches your primary interface's own bridge membership or IP. Auto-detected whenever a new IP doesn't share your host's own subnet (typically a /32 address with an out-of-subnet gateway). Open vSwitch - for deployments already running OVS, with optional VLAN tagging per network. If your provider assigns a specific virtual MAC per additional IP (OVH failover IPs are the common case), set it as that IP Pool entry's own MAC Address Override and the guest's interface will use that exact MAC instead of a random one. Either way, IPs available for allocation live in IP Pool - add the addresses you've got there, and Virtlix claims one automatically for each new VPS (or lets you pick manually) from whatever's marked "not in use."