diff --git a/src/sunstone/public/app/tabs/vms-tab/dialogs/attach-nic/html.hbs b/src/sunstone/public/app/tabs/vms-tab/dialogs/attach-nic/html.hbs
index 0e28ebb240..39ff8bc792 100644
--- a/src/sunstone/public/app/tabs/vms-tab/dialogs/attach-nic/html.hbs
+++ b/src/sunstone/public/app/tabs/vms-tab/dialogs/attach-nic/html.hbs
@@ -37,7 +37,8 @@
       </div>
       <div class="attach_external" style="min-height: 50px;">
         <label>
-          <input type="checkbox" id="cb_external" style="margin-left: 15px"> {{tr "External"}}
+          <input type="checkbox" id="cb_external" style="margin-left: 15px"> {{tr "Skip network contextualizacion"}}
+                {{{tip (tr "A virtual router can be configured to route SDNAT traffic for this NIC IP address")}}}
         </label>
       </div>
       {{{nicTabHTML}}}