diff --git a/Dockerfile b/Dockerfile
index 2fe0f80..f004593 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
 FROM php:5.6-apache
 
-COPY gennum.php subnets.html /var/www/html/
+COPY index.php gennum.php subnets.html /var/www/html/
 COPY img/* /var/www/html/img/
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..a5eb079
--- /dev/null
+++ b/index.php
@@ -0,0 +1,2 @@
+<?php
+header("Location: subnets.html");