test/test-execute/exec-privatenetwork-yes.service

[Unit]
Description=Test for PrivateNetwork

[Service]
ExecStart=/bin/sh -x -c '! ip link | grep -E "^[0-9]+: " | grep -Ev ": (lo|(erspan|gre|gretap|ip_vti|ip6_vti|ip6gre|ip6tnl|sit|tunl)0@.*):"'
Type=oneshot
PrivateNetwork=yes