diff --git a/src/opnsense/mvc/app/models/OPNsense/Interfaces/Vlan.php b/src/opnsense/mvc/app/models/OPNsense/Interfaces/Vlan.php
index b77016e76..1c0101c5f 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Interfaces/Vlan.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Interfaces/Vlan.php
@@ -53,12 +53,19 @@ class Vlan extends BaseModel
                             break;
                         } elseif (!(strpos((string)$node, (string)$prefix) === 0)) {
                             $messages->appendMessage(new Message(
-                                sprintf(gettext("device name does not match type (e.g. %s_xxx)."), (string)$prefix),
+                                sprintf(gettext("Device name does not match type (e.g. %s0XXX)."), (string)$prefix),
                                 $key
                             ));
-                        } elseif (!preg_match("/^([a-zA-Z0-9_]){1,16}$/", (string)$node)) {
+                        } elseif (!preg_match("/^{$prefix}0([0-9\.]){1,16}$/", (string)$node)) {
                             $messages->appendMessage(new Message(
-                                gettext("Invalid device name, only up to 16 alphanumeric characters are supported."),
+                                sprintf(
+                                    gettext(
+                                        "A maximum of 16 characters is allowed starting with %s0 combined with ".
+                                        "numeric characters and dots[.], e.g. (%s.1.104)"
+                                    ),
+                                    $prefix,
+                                    $prefix
+                                ),
                                 $key
                             ));
                         }