diff --git a/src/ac/cisco.default.conf b/src/ac/cisco.default.conf
index 7997a429..a4693c60 100644
--- a/src/ac/cisco.default.conf
+++ b/src/ac/cisco.default.conf
@@ -5,7 +5,7 @@
 # hardware_version
 # Defines the AC's hardware version
 #
-# For Cisco devices this value should have exactly 4 baytes
+# For Cisco devices this value should have exactly 4 bytes
 # A value of .x01000001 represents a hardware 
 # version of 1.0.0.1
 #
@@ -13,16 +13,17 @@
 
 # software_version
 # Defines the AC's software version
-#
+# Use for example :
+#  .x07036500 for version 7.3.101.0
+#. .x08007900 for version 8.0.121.0
 # Cisco APs always expect to run the same software version 
 # as the AC.If the version is different, the AP initiates
-# a firmware downloa to uogra to uograde.
+# a firmware download to uograde.
 # So tieing the software_version to a specific value implies
-# you have to serve the apropriate firmare image to the AP 
+# you have to serve the apropriate firmware image to the AP 
 # or the AP will not connect.
 # If the software_version values is omitted, AC-Tube sends 
 # the same same software version as as the AP sends.
 # 
 # Default: software_version = 
 
-