diff --git a/SOURCES/20-connectivity-powerel.conf b/SOURCES/20-connectivity-powerel.conf
new file mode 100644
index 00000000..0b68074f
--- /dev/null
+++ b/SOURCES/20-connectivity-powerel.conf
@@ -0,0 +1,9 @@
+# Enable connectivity checking for NetworkManager.
+# See `man NetworkManager.conf`.
+#
+# Note that connectivity checking works badly with rp_filter set to
+# strict. Check "/proc/sys/net/ipv4/conf/*/rp_filter".
+[connectivity]
+uri=https://webscripts.powerel.org/check
+response=All OK!
+interval=300