I've been looking around for the option for ages as I can't get Open NAT on Call of Duty games on PS4 when connected to the netduma. Neither UPNP nor port forwarding seem to work, even though the netduma is in the DMZ of my ISP router. I then stumbled upon this:
I haven't used my R1 in a while and recently updated to the DumaOS but I could swear I got open NAT in the past by putting the console in the DMZ of the R1 on the older firmware.
I've also tried manually opening all ports (1-65535 TCP+UDP) with no luck.
I do get Open NAT when the PS4 is in the DMZ of my ISP provided router. How can I get it to be open via the Netduma?
Not using bridge/modem mode on router as the R1 will limit my gigabit connection to 200mbps (Netduma in DMZ of ISP Router, tested that DMZ works correctly)
R1 has a static IP assigned (for the WAN IP I chose 192.168.1.188)
R1 "Router IP Address" I kept the default 192.168.88.1 with "DHCP Range" 192.168.88.100-250
Subnet mask is the same everywhere 255.255.255.0
Gateway set to ISP router's IP (192.168.1.1)
PS4 is wired, has static IP set on console and R1 to 192.168.88.250, no proxy, auto MTU
Tried UPNP set to ON with no manual port forwards, tried UPNP set to OFF with manual port forwards, tried both set to ON, tried manually port forwarding the whole range of ports (1-65535)
R1 Firmware R1 18.104.22.168