Screenshots

These screenshots show the interface of Marionnet as it is in November 2026. They are captured from the running software itself, driven by a script, with its English interface. Click an image to open it at full size.

The Marionnet window with three machines connected to a switch, the consoles of the three machines and the activity window of the switch — A simple session: three machines and a switch, all running. Each machine has its console, where you log in as on a real Debian system; the small window of the switch shows the activity of its ports.

The Add machine dialog: name, label, memory, Ethernet cards, distribution, variant, kernel, startup configuration, consoles — The dialog that adds a machine: its memory, its number of Ethernet cards, the distribution and the kernel it boots, an optional startup configuration.

The Defects tab: cable c1 loses 5 % of the frames towards m1 and delays those towards S1 by 20 to 80 ms; interface eth0 of m2 duplicates 2 % of its outgoing frames — Defects on a cable and on an interface (Defects tab): cable c1 loses 5 % of the frames one way and delays them by 20 to 80 ms the other way; interface eth0 of m2 duplicates 2 % of the frames it sends. Rows in red have a defect set.

A network drawn by Marionnet: a router connects a switch and two machines, a cloud followed by a hub and two machines, and a NAT bridge — A richer network: router R1 connects a switched local network (S1, m1, m2), a second network, behind a hub, reached through a cloud (C1, H1, m3, m4), and a NAT bridge to the real network. The diagram is laid out automatically.

The menu of the planet button of the palette: Gateway, NAT bridge and LAN bridge, with the NAT bridge submenu unfolded — Access to the real network: through three devices, Gateway, NAT bridge and LAN bridge, offered by the planet button of the palette. See What’s new in 2026.