Help on setting up XG Firewall - Plusnet

Question

Good Morning, 
 
 I'm just looking for some advice on a few questions I have. 
 My setup - Sophos XG installed on here 
 Router / Server 
 https://www.amazon.co.uk/Pfsense-Mi5250L-I5-5250U-Ethernet-Fanless/dp/B06XRHS72W/ref=sr_1_3?m=A3NZXFKJ0Y59OU&s=computers&ie=UTF8&qid=1528972856&sr=1-3&refinements=p_6%3AA3NZXFKJ0Y59OU 
 PlusNet Hub One 
 https://www.broadbandchoices.co.uk/guides/hardware/plusnet-hub-one 
 Asus AC750 Router 
 https://www.asus.com/uk/Networking/DSL-AC750/ 
 Basically I want to ensure both wired devices and wireless devices are fully behind the XG, but I conscious around the risk if the PlusNet Hub One (Which is my router & modem) is doing the WIFI and terminating the internet connection, that the WIFI devices that are connected to it will be at risk as they aren't directly behind the XG. If that makes sense. 
 In a nutshell I want to know what is the best configuration with my current hardware, to ensure all devices are covered and aren't at risk. 
 Many thanks

Aditya Patel · Accepted Answer

Hi Super Sausage, 
 If you have an existing Router in place then you may need to check if the connection is ADSL 2 or DSL .If ADSL then you may configure on the WAN port of the SFOS and configure it automatically. You may use your existing router and attach to one of the LAN ports , configure it as a Access Point and SFOS as a DHCP server. 
 Lastly ,if your ISP have a MAC binding enabled from their end. You may simply Change the MAC address in the WAN interface Advance Settings on SFOS.