DD-WRT firewall settings for external Squid proxy server

My home network setup starts off with an Asus RT-N16 which has DD-WRT installed on it to get a little more than what the stock firmware can provide to me. I also have my home fileserver which also acts as a Squid Caching server to help speed up my browsing.

In order to have all network traffic pushed through my Squid server this is these are the firewall settings I had to use on the Asus RT-N16 router. (I am not going to provide setup details for the Squid server in this post)

The nice thing about this setup is that I do not have to specify a proxy server for each device on my network, and the server is configured to block ads as well.