LB2120 Providing Private IP to device connected in bridge mode

My LB2120 is exhibiting some odd behavior. When I set it to bridge mode, it's supposed to pass the WAN IP to the connected device. It doesn't seem to be doing this. Instead, it provides a private 10.X.X.X IP to the device connected to the LAN port. This is causing me to be unable to setup port forwarding to devices inside my network. I'm not really interested in setting it back to router mode if I can avoid it as that would cause dual-NAT. I'd like to stay away from dual-NAT as that will cause me additional issues. Any ideas on how to get the Netgear to pass my public IP to my device instead of the private address?