diff --git a/includes/common.php b/includes/common.php
index d74a512a9..943feb930 100644
--- a/includes/common.php
+++ b/includes/common.php
@@ -1248,7 +1248,7 @@ function get_port_id ($ports_mapped, $port, $port_association_mode) {
     */
     $maps  = $ports_mapped['maps'];
 
-    if (in_array ($port_association_mode, array ('ifIndex', 'ifName', 'ifDescr'))) {
+    if (in_array ($port_association_mode, array ('ifIndex', 'ifName', 'ifDescr', 'ifAlias'))) {
         $port_id = $maps[$port_association_mode][$port[$port_association_mode]];
     }
 
diff --git a/sql-schema/099.sql b/sql-schema/099.sql
new file mode 100644
index 000000000..646e4c4e1
--- /dev/null
+++ b/sql-schema/099.sql
@@ -0,0 +1 @@
+INSERT INTO port_association_mode (name) values ('ifAlias');