+DEFAULT_INTERFACE=$(route -n | awk '$1~/^0.0.0.0/ {print $8}')
+DEFAULT_MTU=$( ip addr show $DEFAULT_INTERFACE | perl -ne 'if (/mtu\s(\d+)/) {print $1;}')
+
+INFO "Setting lxdbr0 MTU to $DEFAULT_MTU"
+ifconfig lxdbr0 mtu $DEFAULT_MTU
+
+# Make the MTU change persistent between reboots
+sed -i '/lxc list/d' /etc/rc.local
+sed -i "$ i lxc list > /dev/null" /etc/rc.local
+sed -i '/ifconfig lxdbr0 mtu/d' /etc/rc.local
+sed -i "$ i ifconfig lxdbr0 mtu $DEFAULT_MTU" /etc/rc.local
+
+# Enable the rc-local service so our changes get executed upon boot
+systemctl enable rc-local.service
+