diff --git a/dynamic/middlewares.yml b/dynamic/middlewares.yml
index 848ee6e..583af56 100644
--- a/dynamic/middlewares.yml
+++ b/dynamic/middlewares.yml
@@ -27,6 +27,7 @@ http:
         sourceRange:
           - "127.0.0.1/32"
           - "10.0.0.0/8"
+          - "172.16.0.0/12"
           - "192.168.0.0/16"
 
     # Autenticación básica (genera hash con: docker run --rm httpd:alpine htpasswd -nbB admin tu_password)