diff --git a/extensions/ebt_vlan.c b/extensions/ebt_vlan.c
index e95a79d..f7bec62 100644
--- a/extensions/ebt_vlan.c
+++ b/extensions/ebt_vlan.c
@@ -76,6 +76,10 @@
 
 struct ethertypeent *ethent;
 
+/*
+ * Print out local help by "ebtables -h <match name>" 
+ */
+
 static void print_help()
 {
 #define HELP_TITLE "802.1Q VLAN extension"
@@ -93,19 +97,33 @@
 	       OPT_VLAN_FLAGS & OPT_VLAN_ENCAP ? "[!] " : "");
 }
 
+/*
+ * Initialization function 
+ */
 static void init(struct ebt_entry_match *match)
 {
 	struct ebt_vlan_info *vlaninfo =
 	    (struct ebt_vlan_info *) match->data;
-
+	/*
+	 * Set initial values 
+	 */
 	vlaninfo->id = 1;	/* Default VID for VLAN-tagged 802.1Q frames */
 	vlaninfo->prio = 0;
 	vlaninfo->encap = 0;
 	vlaninfo->invflags = 0;
 	vlaninfo->bitmask = 0;
-	match->version = VERSIONIZE(1,0);
 }
 
+
+/*
+ * Parse passed arguments values (ranges, flags, etc...)
+ * int c - parameter number from static struct option opts[]
+ * int argc - total amout of arguments (std argc value)
+ * int argv - arguments (std argv value)
+ * const struct ebt_u_entry *entry - default ebtables entry set
+ * unsigned int *flags -
+ * struct ebt_entry_match **match - 
+ */
 static int
 parse(int c,
       char **argv,
@@ -166,6 +184,9 @@
 	return 1;
 }
 
+/*
+ * Final check - logical conditions
+ */
 static void
 final_check(const struct ebt_u_entry *entry,
 	    const struct ebt_entry_match *match,
@@ -201,6 +222,9 @@
 	}
 }
 
+/*
+ * Print line when listing rules by ebtables -L 
+ */
 static void
 print(const struct ebt_u_entry *entry, const struct ebt_entry_match *match)
 {