diff --git a/SOURCES/20-connectivity-msvsphere.conf b/SOURCES/20-connectivity-msvsphere.conf
new file mode 100644
index 0000000..04cc3e5
--- /dev/null
+++ b/SOURCES/20-connectivity-msvsphere.conf
@@ -0,0 +1,10 @@
+# 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]
+enabled=true
+uri=http://static.inferitos.ru/test/check-networkmanager.txt
+response=OK
+interval=300