Se agrega traducción

src/CablemodemBundle/Admin/CablemodemAdmin.php

@@ -35,7 +35,9 @@ class CablemodemAdmin extends WorkflowBaseAdmin
     protected function configureListFields(ListMapper $listMapper)
     {
         $listMapper
-            ->add('clientId')
+            ->add('clientId', null, [
+                'label' => 'list.label_client',
+            ])
             ->add('model')
             ->add('mac')
             ->add('activationCode')

src/CablemodemBundle/Resources/translations/CablemodemBundle.es.yml

@@ -114,6 +114,7 @@ list:
     label_fixed_i_p: IP fija
     label_cpe_fixed_i_p: IP fija CPE
     label_mta_fixed_i_p: IP fija MTA 
+    label_client: ExtID - Cliente (ID)
 
     
 show: