https://community.sophos.com/utm-firewall/f/remote-ethernet-device-red/122082/transparent-split-and-natHi, I have a good established RED setup for a few remote sites that are under our control and all use Unified/Standard mode, and we extend our LAN address space out to those, with DHCP relayed from the main site. This works well. However, I haveen-USTelligent Community 12https://community.sophos.com/thread/444056?ContentTypeID=1Fri, 31 Jul 2020 14:34:44 GMT4be5eb7d-caa4-4ff5-8e60-8f9463545a35:b6325c54-dc9f-4598-b1f3-0bd8d932f558BAlfson<p>Hi Jon and welcome to the UTM Community!</p> <p>If I understand what you&#39;re trying to accomplish, a&nbsp;Full NAT&nbsp;should be what you want.&nbsp; If that didn&#39;t work, show us the Edit of your NAT rule.</p> <p>If you have a duplicate subnet at two locations,&nbsp;instead of a RED,&nbsp;you will need a UTM with a Network Protection subscription at the duplicate location.</p> <p>My usual recommendation is for internal subnets to be in the 172.16.0.0/12 range.&nbsp; Reserve 192.168.0.0/16 for public hotspots and home users.&nbsp; Reserve 10.0.0.0/8 for giant multinationals, ISPs, etc.</p> <p>Cheers - Bob</p><div style="clear:both;"></div>