[Unit]
Description=Ethernet Bridge Filtering Tables
ConditionFileIsExecutable=/etc/systemd/scripts/ebtables
After=network.target

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/etc/systemd/scripts/ebtables start
ExecStop=/etc/systemd/scripts/ebtables stop

[Install]
WantedBy=multi-user.target