Added complete bridging configuration

Makefile

-i386: bridge-netdev
+i386: bridge-netdev bridge-network bind-network
 	dd if=/dev/zero of=swap bs=1048576 count=1024
 	chmod 600 swap
 	mkswap swap
@@ -15,8 +15,10 @@ i386: bridge-netdev
 	rm -rf swap
 
 	echo "$$BRIDGE_NETDEV" > /etc/systemd/network/br0.netdev
+	echo "$$BRIDGE_NETWORK" > /etc/systemd/network/br0.network
+	echo "$$BIND_NETWORK" > /etc/systemd/network/bind.network
 
-x86_64: bridge-netdev
+x86_64: bridge-netdev bridge-network bind-network
 	dd if=/dev/zero of=swap bs=1048576 count=1024
 	chmod 600 swap
 	mkswap swap
@@ -37,8 +39,10 @@ x86_64: bridge-netdev
 	rm -rf swap
 
 	echo "$$BRIDGE_NETDEV" > /etc/systemd/network/br0.netdev
+	echo "$$BRIDGE_NETWORK" > /etc/systemd/network/br0.network
+	echo "$$BIND_NETWORK" > /etc/systemd/network/bind.network
 
-arm: bridge-netdev
+arm: bridge-netdev bridge-network bind-network
 	dd if=/dev/zero of=swap bs=1048576 count=1024
 	chmod 600 swap
 	mkswap swap
@@ -55,8 +59,10 @@ arm: bridge-netdev
 	rm -rf swap
 
 	echo "$$BRIDGE_NETDEV" > /etc/systemd/network/br0.netdev
+	echo "$$BRIDGE_NETWORK" > /etc/systemd/network/br0.network
+	echo "$$BIND_NETWORK" > /etc/systemd/network/bind.network
 
-aarch64: bridge-netdev
+aarch64: bridge-netdev bridge-network bind-network
 	dd if=/dev/zero of=swap bs=1048576 count=1024
 	chmod 600 swap
 	mkswap swap
@@ -77,6 +83,8 @@ aarch64: bridge-netdev
 	rm -rf swap
 
 	echo "$$BRIDGE_NETDEV" > /etc/systemd/network/br0.netdev
+	echo "$$BRIDGE_NETWORK" > /etc/systemd/network/br0.network
+	echo "$$BIND_NETWORK" > /etc/systemd/network/bind.network
 
 bridge-netdev:
 define BRIDGE_NETDEV
@@ -85,3 +93,26 @@ Name=br0
 Kind=bridge
 endef
 export BRIDGE_NETDEV
+
+bridge-network:
+define BRIDGE_NETWORK
+[Match]
+Name=br0
+
+[Network]
+DHCP=ipv4
+
+[DHCP]
+UseDomains=true
+endef
+export BRIDGE_NETWORK
+
+bind-network:
+define BIND_NETWORK
+[Match]
+Name=eth*
+
+[Network]
+Bridge=br0
+endef
+export BIND_NETWORK