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NAT Forwarding

Hi all,

I've just set up and configured my UTM9 Home (Thanks Sophos, really great tool) and it seems to be working fine. 

I have it configured like this:

Home Network ----> ASUS Router -----> Sophos UTM Semi-Transparent Pass Through -------> Sky Home Hub --------> Internet                                                          ^                                                             ^                                                                                                                                                                                    |___________________________|                                                                                                                                                                                                           Management                                                                                                                                  

I have had to configure it like this for a few reasons, although this could change if there is no way around my current issue. These reasons are:

  1. Coming off the Sky Home Hub is my work/production network. Due to the work/research I carry out on there, I want to keep it double NAT'd away from my home network to provide an extra layer of security. This can change if required, but ideally, I'd like to keep it that way.
  2. My ASUS Router is my main routing device, it is cabled and wireless. If I was to put the Sophos box on the other side of he NAT, it would pick up the wired traffic (Most of it is through a switch) but it wouldn't pick up the wireless traffic because it's not passing through it.

My question is, is there a away of configuring my ASUS router to forward the NAT table to Sophos via the management port? Failing that, is there anyway that I could get Sophos to see all of the Un-NAT'd addresses coming out of the router. Because I'm seeing various bits traffic violations/IPS signatures alert, but they're all labelled as the public IP of my Router. 



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