> avertissement: je n'y connais rien
1) tu as redémarré le servive après les modifs? # systemctl restart systemd-networkd 2) le wiki Debian avertit d'une particularité qui peut poser problème: "Hint: in Debian Buster (probably also previous versions) systemd- networkd may assign a different MAC-Address to the bridge than your physical interface has. This may cause connection issues if your service provider uses some kind of MAC-filtering when routing your traffic. To circumvent such problems you may assign a MAC-address to your bridge (probably the same as your physical device, replace the 'xx' with valid MAC): " https://wiki.debian.org/SystemdNetworkd ne m'en demande pas plus ou plus pertinent, je sais pas faire :-)
