diff --git a/arednGettingStarted/advanced_config.rst b/arednGettingStarted/advanced_config.rst
index 9eb004a..34ebdab 100755
--- a/arednGettingStarted/advanced_config.rst
+++ b/arednGettingStarted/advanced_config.rst
@@ -202,7 +202,7 @@ Advertised Services
     Check this box if your want your advertised service to display an active link in the web browser. This allows mesh users to navigate to your service by clicking the link in their web browser.
 
   Protocol
-    Enter the protocol to use in the field between *Link* and *URL*. Common protocols include ``http`` for website services and ``ftp`` for file transfer services. Other services may use other protocols.
+    Enter the `protocol to use <https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers>`_ in the field between *Link* and *URL*. Common protocols include ``http`` for website services and ``ftp`` for file transfer services. Other services may use other protocols.
 
   URL
     From the dropdown list select the node or host on which this service is running. If you defined DNS Aliases as described below, you can also select a host alias from the dropdown list.