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3 files changed, 63 insertions, 0 deletions

diff --git a/releng/airootfs/etc/systemd/network/20-ethernet.network b/releng/airootfs/etc/systemd/network/20-ethernet.network
new file mode 100644
index 0000000..d3a3271
--- /dev/null
+++ b/releng/airootfs/etc/systemd/network/20-ethernet.network
@@ -0,0 +1,24 @@
+[Match]
+# Matching with "Type=ether" causes issues with containers because it also matches virtual Ethernet interfaces (veth*).
+# See https://bugs.archlinux.org/task/70892
+# Instead match by globbing the network interface name.
+Name=en*
+Name=eth*
+
+[Link]
+RequiredForOnline=routable
+
+[Network]
+DHCP=yes
+MulticastDNS=yes
+
+# systemd-networkd does not set per-interface-type default route metrics
+# https://github.com/systemd/systemd/issues/17698
+# Explicitly set route metric, so that Ethernet is preferred over Wi-Fi and Wi-Fi is preferred over mobile broadband.
+# Use values from NetworkManager. From nm_device_get_route_metric_default in
+# https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/main/src/core/devices/nm-device.c
+[DHCPv4]
+RouteMetric=100
+
+[IPv6AcceptRA]
+RouteMetric=100
diff --git a/releng/airootfs/etc/systemd/network/20-wlan.network.disabled b/releng/airootfs/etc/systemd/network/20-wlan.network.disabled
new file mode 100644
index 0000000..8b70a95
--- /dev/null
+++ b/releng/airootfs/etc/systemd/network/20-wlan.network.disabled
@@ -0,0 +1,20 @@
+[Match]
+Name=wl*
+
+[Link]
+RequiredForOnline=routable
+
+[Network]
+DHCP=yes
+MulticastDNS=yes
+
+# systemd-networkd does not set per-interface-type default route metrics
+# https://github.com/systemd/systemd/issues/17698
+# Explicitly set route metric, so that Ethernet is preferred over Wi-Fi and Wi-Fi is preferred over mobile broadband.
+# Use values from NetworkManager. From nm_device_get_route_metric_default in
+# https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/main/src/core/devices/nm-device.c
+[DHCPv4]
+RouteMetric=600
+
+[IPv6AcceptRA]
+RouteMetric=600
diff --git a/releng/airootfs/etc/systemd/network/20-wwan.network b/releng/airootfs/etc/systemd/network/20-wwan.network
new file mode 100644
index 0000000..6e1c8dd
--- /dev/null
+++ b/releng/airootfs/etc/systemd/network/20-wwan.network
@@ -0,0 +1,19 @@
+[Match]
+Name=ww*
+
+[Link]
+RequiredForOnline=routable
+
+[Network]
+DHCP=yes
+
+# systemd-networkd does not set per-interface-type default route metrics
+# https://github.com/systemd/systemd/issues/17698
+# Explicitly set route metric, so that Ethernet is preferred over Wi-Fi and Wi-Fi is preferred over mobile broadband.
+# Use values from NetworkManager. From nm_device_get_route_metric_default in
+# https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/main/src/core/devices/nm-device.c
+[DHCPv4]
+RouteMetric=700
+
+[IPv6AcceptRA]
+RouteMetric=700