diff --git a/doc/Support/Configuration.md b/doc/Support/Configuration.md
index e7d305cf2..1a653030c 100644
--- a/doc/Support/Configuration.md
+++ b/doc/Support/Configuration.md
@@ -400,6 +400,8 @@ by continuing the array.
 `bad_if` is matched against the ifDescr value.
 `bad_iftype` is matched against the ifType value.
 `bad_if_regexp` is matched against the ifDescr value as a regular expression.
+`bad_ifname_regexp` is matched against the ifName value as a regular expression.
+`bad_ifalias_regexp` is matched against the ifAlias value as a regular expression.
 
 #### Interfaces to be rewritten
 
diff --git a/includes/functions.php b/includes/functions.php
index d7597c8ae..b1e58fac4 100644
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -873,6 +873,8 @@ function is_port_valid($port, $device) {
     else {
         $valid = 1;
         $if = strtolower($port['ifDescr']);
+        $ifname = strtolower($port['ifName']);
+        $ifalias = strtolower($port['ifAlias']);
         $fringe = $config['bad_if'];
         if( is_array($config['os'][$device['os']]['bad_if']) ) {
             $fringe = array_merge($config['bad_if'],$config['os'][$device['os']]['bad_if']);
@@ -895,6 +897,30 @@ function is_port_valid($port, $device) {
                 }
             }
         }
+        if (is_array($config['bad_ifname_regexp'])) {
+            $fringe = $config['bad_ifname_regexp'];
+            if( is_array($config['os'][$device['os']]['bad_ifname_regexp']) ) {
+                $fringe = array_merge($config['bad_ifname_regexp'],$config['os'][$device['os']]['bad_ifname_regexp']);
+            }
+            foreach ($fringe as $bi) {
+                if (preg_match($bi ."i", $ifname)) {
+                    $valid = 0;
+                    d_echo("ignored : $bi : ".$ifname);
+                }
+            }
+        }
+        if (is_array($config['bad_ifalias_regexp'])) {
+            $fringe = $config['bad_ifalias_regexp'];
+            if( is_array($config['os'][$device['os']]['bad_ifalias_regexp']) ) {
+                $fringe = array_merge($config['bad_ifalias_regexp'],$config['os'][$device['os']]['bad_ifalias_regexp']);
+            }
+            foreach ($fringe as $bi) {
+                if (preg_match($bi ."i", $ifalias)) {
+                    $valid = 0;
+                    d_echo("ignored : $bi : ".$ifalias);
+                }
+            }
+        }
         if (is_array($config['bad_iftype'])) {
             $fringe = $config['bad_iftype'];
             if( is_array($config['os'][$device['os']]['bad_iftype']) ) {