Playstation Nat Strict issue over OpenVPN

gregovsky

Hi guys,

On my flat I have only LTE internet. But I also have Playstation 4 and I can't enjoy so much of online stuff because of Nat: type 3 (strict). Because my provider and device I got for LTE internet doesn't allow me to do any changes on router, or have static IP, or anything I can use to fix it, I went for quite complicated solution:

I bought Asus 4G-AC55U router which can connect to LTE internet and has also option to OpenVPN client. I also bought another Asus router RT-N66U which sits in my another flat where is connected to internet with a static public IP address on it. So I can access it from anywhere. I have configured OpenVPN server in TAP (bridge) mode, so I see both routers and all devices on one network, they can communicate to each other and I can access my media server from any devices in both flats. So far so good.

just FYI, my home network IP range:
192.168.1.1 - router Asus RT-N66U - dhcp range .2 to .100
192.168.1.101 - router Asus 4G-AC55U - dhpc range .102 to .200

now the problem is: I have a Playstation sitting on static IP (assigned over MAC) 192.168.1.126 physicaly below router Asus 4G-AC55U (VPN client), but becasue of TAP mode, I can see it in list of clients also on router Asus RT-N66U (VPN server).

When I was looking for how to change Nat, from 'type 3' (strict), all 'how to' always talk about: Enable UPnP, Enable DMZ, add 10 ports to port forwarding.
So I did, I have enabled UPnP on Asus RT-N66U (VPN server). I Enable DMZ on both routers to IP 192.168.1.126. And I have added all port forwardings on Asus RT-N66U (VPN server).

But nothing changed, PS4 is still in NAT type 3 🙁

I have asked my internet provider where Asus RT-N66U (VPN server) is connected if there are any relevant restrictions and he says no.

So my last feeling is that it may have something to do with OpenVPN... So guys please do you have any idea, tip, suggestion what can be wrong?

Thank you very much!

TinCanTech

This sounds like a horrible kludge and really don't expect great performance ..

Try on this [Main] router:

gregovsky wroteI also bought another Asus router RT-N66U which sits in my another flat where is connected to internet with a static public IP address on it.

redirect client gateway .. so all your other router goes out this router.

Then, on the Main router, forward what ever ports you need to your playstation IP ..

gregovsky

TinCanTech wroteThis sounds like a horrible kludge and really don't expect great performance ..

Yeah I know it may sounds like, but there is couple of things I wanted to achieve with this:
A) devices in both flats can communicate together (sending files from between them)
B) devices in both flats can use single media server (disk connected directly to Asus RT-N66U)
C) be able to open Nat for Playstation, because on original box from my LTE internet provider I wasn't able to configure anything 🙁

and also I am networking amateur, so its big chance I am doing something completely overkill instead of some easiest solution I am overlooking... 🙁

gregovsky

SOLVED! final missing piece was to configure connection on PS4 manually and set gateway to 192.168.1.1 which is router with VPN Server...