diff --git a/include/AddressRange.h b/include/AddressRange.h
index 0aa61a683b..d9a04a63e5 100644
--- a/include/AddressRange.h
+++ b/include/AddressRange.h
@@ -522,6 +522,13 @@ private:
      *  The restricted attributes from oned.conf
      */
     static set<string> restricted_attributes;
+
+    /**
+     *  Attributes to be process for Security Group rules
+     */
+    const static char * SG_RULE_ATTRIBUTES[];
+
+    const static int  NUM_SG_RULE_ATTRIBUTES;
 };
 
 #endif
diff --git a/src/vnm/AddressRange.cc b/src/vnm/AddressRange.cc
index 94a1072e8b..c374e868f0 100644
--- a/src/vnm/AddressRange.cc
+++ b/src/vnm/AddressRange.cc
@@ -1073,18 +1073,25 @@ int AddressRange::free_addr_by_range(PoolObjectSQL::ObjectType ot, int obid,
 /* -------------------------------------------------------------------------- */
 /* -------------------------------------------------------------------------- */
 
+const char * AddressRange::SG_RULE_ATTRIBUTES[] = {
+    "AR_ID",
+    "TYPE",
+    "SIZE",
+    "MAC",
+    "IP"};
+
+const int  AddressRange::NUM_SG_RULE_ATTRIBUTES = 5;
+
 void AddressRange::process_security_rule(
         VectorAttribute *        rule)
 {
-    string attrs [] = {"AR_ID", "TYPE", "SIZE", "MAC", "IP"};
-
-    for ( int i = 0; i < 5; i++ )
+    for ( int i = 0; i < NUM_SG_RULE_ATTRIBUTES; i++ )
     {
-        string st = attr->vector_value(attrs[i].c_str());
+        string st = attr->vector_value(SG_RULE_ATTRIBUTES[i]);
 
         if ( st != "" )
         {
-            rule->replace(attrs[i], st);
+            rule->replace(SG_RULE_ATTRIBUTES[i], st);
         }
     }
 }