diff --git a/vpn.conf b/vpn.conf
index 5c16f5b..f93faea 100644
--- a/vpn.conf
+++ b/vpn.conf
@@ -12,6 +12,8 @@ dh dh2048.pem
 server 10.8.0.0 255.255.255.0
 verb 4
 
+topology subnet
+
 # auth
 cipher AES-256-GCM
 auth SHA256