From b22744b03152a1a49a2e0445b86f770e0a853a10 Mon Sep 17 00:00:00 2001
From: Jeremy Stretch <jstretch@digitalocean.com>
Date: Fri, 9 Mar 2018 13:51:17 -0500
Subject: [PATCH] Removed validation constraint prohibitting a VLAN from being
 both tagged and untagged

---
 netbox/dcim/forms.py | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/netbox/dcim/forms.py b/netbox/dcim/forms.py
index e13a78460..ab17831a1 100644
--- a/netbox/dcim/forms.py
+++ b/netbox/dcim/forms.py
@@ -1692,13 +1692,8 @@ class InterfaceForm(BootstrapMixin, forms.ModelForm):
         super(InterfaceForm, self).clean()
 
         # Validate VLAN assignments
-        untagged_vlan = self.cleaned_data['untagged_vlan']
         tagged_vlans = self.cleaned_data['tagged_vlans']
 
-        # A VLAN cannot be both tagged and untagged
-        if untagged_vlan and untagged_vlan in tagged_vlans:
-            raise forms.ValidationError("VLAN {} cannot be both tagged and untagged.".format(untagged_vlan))
-
         # Untagged interfaces cannot be assigned tagged VLANs
         if self.cleaned_data['mode'] == IFACE_MODE_ACCESS and tagged_vlans:
             raise forms.ValidationError({