diff --git a/nmcli-with-gsm.md b/nmcli-with-gsm.md
index 91ee9c1..3ab86bb 100644
--- a/nmcli-with-gsm.md
+++ b/nmcli-with-gsm.md
@@ -126,4 +126,7 @@ proxy.method:                           none
 proxy.browser-only:                     no
 proxy.pac-url:                          --
 proxy.pac-script:                       --
-```
\ No newline at end of file
+```
+
+requires all ppp driver in kernel 
+Devices drivers ->Network device support