diff --git a/Netdisco/lib/App/Netdisco/Core/Macsuck.pm b/Netdisco/lib/App/Netdisco/Core/Macsuck.pm
index dd030f2b..5a2afada 100644
--- a/Netdisco/lib/App/Netdisco/Core/Macsuck.pm
+++ b/Netdisco/lib/App/Netdisco/Core/Macsuck.pm
@@ -193,13 +193,26 @@ sub _get_vlan_list {
 
   my (%vlans, %vlan_names);
   my $i_vlan = $snmp->i_vlan || {};
+  my $trunks = $snmp->i_vlan_membership || {};
+  my $i_type = $snmp->i_type || {};
 
   # get list of vlans in use
   while (my ($idx, $vlan) = each %$i_vlan) {
       # hack: if vlan id comes as 1.142 instead of 142
       $vlan =~ s/^\d+\.//;
-
-      ++$vlans{$vlan};
+      
+      # VLANs are ports interfaces capture VLAN, but don't count as in use
+      # Port channels are also 'propVirtual', but capture while checking
+      # trunk VLANs below
+      if (exists $i_type->{$idx} and $i_type->{$idx} eq 'propVirtual') {
+        $vlans{$vlan} ||= 0;
+      }
+      else {
+        ++$vlans{$vlan};
+      }
+      foreach my $t_vlan (@{$trunks->{$idx}}) {
+        ++$vlans{$t_vlan};
+      }
   }
 
   unless (scalar keys %vlans) {
@@ -215,7 +228,8 @@ sub _get_vlan_list {
       (my $vlan = $idx) =~ s/^\d+\.//;
 
       # just in case i_vlan is different to v_name set
-      ++$vlans{$vlan};
+      # capture the VLAN, but it's not in use on a port
+      $vlans{$vlan} ||= 0;
 
       $vlan_names{$vlan} = $name;
   }
@@ -268,8 +282,7 @@ sub _get_vlan_list {
       }
 
       # check in use by a port on this device
-      if (scalar keys %$i_vlan and not exists $vlans{$vlan}
-            and not setting('macsuck_all_vlans')) {
+      if (!$vlans{$vlan} && !setting('macsuck_all_vlans')) {
 
           debug sprintf
             ' [%s] macsuck VLAN %s/%s - not in use by any port - skipping.',
diff --git a/Netdisco/lib/App/Netdisco/Manual/Configuration.pod b/Netdisco/lib/App/Netdisco/Manual/Configuration.pod
index c2700aca..617cef76 100644
--- a/Netdisco/lib/App/Netdisco/Manual/Configuration.pod
+++ b/Netdisco/lib/App/Netdisco/Manual/Configuration.pod
@@ -390,7 +390,8 @@ VLAN which is not defined in the VLAN database.
 
 =head3 C<macsuck_no_vlan>
 
-Value: List of VLAN names or numbers. Default: Empty List.
+Value: List of VLAN names or numbers. Default: fddi-default,
+token-ring-default,fddinet-default,trnet-default.
 
 On some devices, per-VLAN macsuck will timeout with specific VLAN numbers. You
 can put those numbers (or their names) into this list to have them skipped.
diff --git a/Netdisco/share/config.yml b/Netdisco/share/config.yml
index d8cb975a..f39ae3dd 100644
--- a/Netdisco/share/config.yml
+++ b/Netdisco/share/config.yml
@@ -79,7 +79,7 @@ macsuck_no: []
 macksuck_only: []
 macsuck_all_vlans: false
 macsuck_no_unnamed: false
-macsuck_no_vlan: []
+macsuck_no_vlan: [fddi-default,token-ring-default,fddinet-default,trnet-default]
 macsuck_no_devicevlan: []
 macsuck_bleed: false
 macsuck_min_age: 0