diff --git a/interfaces/forms.py b/interfaces/forms.py
index cebd8a9..e7c22bf 100644
--- a/interfaces/forms.py
+++ b/interfaces/forms.py
@@ -65,7 +65,7 @@ class AddInterface(forms.Form):
 
     def clean_netdev(self):
         netdev = self.cleaned_data['netdev']
-        have_symbol = re.match('^[a-z0-9.]+$', netdev)
+        have_symbol = re.match('^[a-z0-9.:]+$', netdev)
         if not have_symbol:
             raise forms.ValidationError(_('The interface must not contain any special characters'))
         elif len(netdev) > 10:
diff --git a/networks/forms.py b/networks/forms.py
index 3d44433..fc94358 100644
--- a/networks/forms.py
+++ b/networks/forms.py
@@ -16,7 +16,7 @@ class AddNetPool(forms.Form):
 
     def clean_name(self):
         name = self.cleaned_data['name']
-        have_symbol = re.match('^[a-zA-Z0-9._-]+$', name)
+        have_symbol = re.match('^[a-zA-Z0-9\.\_\-]+$', name)
         if not have_symbol:
             raise forms.ValidationError(_('The pool name must not contain any special characters'))
         elif len(name) > 20:
@@ -35,7 +35,7 @@ class AddNetPool(forms.Form):
     def clean_bridge_name(self):
         bridge_name = self.cleaned_data['bridge_name']
         if self.cleaned_data['forward'] == 'bridge':
-            have_symbol = re.match('^[a-zA-Z0-9._-]+$', bridge_name)
+            have_symbol = re.match('^[a-zA-Z0-9\.\_\:\-]+$', bridge_name)
             if not have_symbol:
                 raise forms.ValidationError(_('The pool bridge name must not contain any special characters'))
             elif len(bridge_name) > 20:
diff --git a/networks/templates/create_net_block.html b/networks/templates/create_net_block.html
index 0ab42b4..166dc23 100644
--- a/networks/templates/create_net_block.html
+++ b/networks/templates/create_net_block.html
@@ -52,7 +52,7 @@
                         <div class="form-group bridge_name_form_group">
                             <label class="col-sm-4 control-label">{% trans "Bridge Name" %}</label>
                             <div class="col-sm-6">
-                                <input type="text" class="form-control" name="bridge_name" placeholder="br0" pattern="[a-z0-9\-_]+">
+                                <input type="text" class="form-control" name="bridge_name" placeholder="br0" pattern="[a-z0-9\-_:]+">
                             </div>
                         </div>
                         <div class="form-group bridge_name_form_group">