[Unit]
Description=Network interface with dynamic IPv4 (%i)
After=network.target

[Service]
Type=oneshot
RemainAfterExit=yes

EnvironmentFile=/etc/snic/snic-%i.conf

ExecStart=/usr/bin/ip link set %i up
ExecStart=/usr/bin/ip addr flush dev %i

ExecStop=/usr/bin/ip addr flush dev %i
ExecStop=/usr/bin/ip link set %i down

[Install]
WantedBy=multi-user.target