two ps4 with open nat type

[ps21.850]

i was wondering is there a way that i can have two ps4 systems with open nat

[Netduma Fraser]

It can be quite hard but follow this: 

 

Hard turn off the console
Disable Geo-filter on Duma
Hub in modem mode or R1 WAN IP from device manager into the DMZ on hub
UPnP & port forwarding disabled on the hub
UPnP OR port forwarding enabled on the Duma, not both
UPnP forwarding disabled in Duma miscellaneous settings
Boot up console - check network settings - should be open or NAT Type 2 (open)
Boot up game - should be open

 

80 UDP/TCP
443 UDP/TCP
1935 UDP/TCP
3074 UDP/TCP
3478-3480 UDP/TCP