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@@ -31,6 +31,8 @@ Save this file for now and close it. You may want to change this file's permissi
 
 At this point, you likely will need to forward ports on your router to make the port you chose in the configuration file publically accessable. Consult your router's documentation for more information. You will need to know the public-facing port later.
 
+The server will also need to change a configuration file for packet forwarding to work. Open `/etc/sysctl.conf` and uncomment the line `net.ipv4.ip_forward=1`, or do it with `sed`: `suo sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/' /etc/sysctl.conf`. After this is set, reload the configuration with `sudo sysctl -p`
+
 ## Step 3: Initial Client Configuration
 
 To initially set up a client, first you must create a public and private key for the client. To do that, run the following: