[Unit]
Description=Control promiscuous mode for interface enp2s0
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/bin/ip link set enp2s0 up
ExecStart=/usr/bin/ip link set enp2s0 promisc on
ExecStop=/usr/bin/ip link set enp2s0 promisc off
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target