[Unit]
Description=Check if network is ready
DefaultDependencies=no
IgnoreOnIsolate=yes
Conflicts=shutdown.target
After=rc-network.service
Before=network-online.target

[Service]
Type=oneshot
ExecStart=/usr/syno/lib/systemd/scripts/syno-network-check.sh
RemainAfterExit=yes

[X-Synology]