WAN IP and LAN IP address cannot be in the same subnet. (trying to configure a static IP on my router)

Oct 19, 2018
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So I have a problem where I'm trying to play a game on a open NAT and for that I need a static IP. Now, I have made a static IP through my PC but when I look at my router it says I'm on a dynamic. So when I put the same IP info on the router as I have on the PC it tells me the WAN and LAN IP can't be in the same subnet. Here's a screenshot:
https://prnt.sc/l88srz

As a totally noob on this, what am I doing wrong?
Appreciate the help, thanks!
 
Solution


Have you also allowed those ports in your PC's firewall? You may need to Google the instructions for your specific OS or firewall software.

Also, Google "what is my IP address" or look up your public IP address at a site like www.canyouseeme.org. The address displayed must match the WAN IP address of the router on which you are forwarding ports. If it doesn't, port forwarding will not work. You may have another router (ISP provided) or your ISP may be assigning you a private IP address (carrier grade NAT).

If the address does match your router's WAN address, then you might try temporarily using the DMZ function of your router. Put...

BuddhaSkoota

Admirable


You cannot make the WAN IP address of your router static. It is a public IP address assigned by your ISP and must remain dynamic. It is not in the same address range as your PC. (The only way to get a static WAN IP is to pay for one through your ISP.)

Keeping your PC's IP address static is only one step in getting less than strict NAT. You'll also need to forward the required ports for the game you are playing.
 
Oct 19, 2018
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Oh I know about the port forwarding, so I guess the problem actual lies in that then? I'm trying to get Black Ops 4 on PC to have Open NAT. I'm not sure about what I'm doing exactly when it comes to virtual servers and port triggering, but here's what I've got going on right now: (which doesn't work)
https://prnt.sc/l8kn5b
https://prnt.sc/l89gq8

Also, this is what it says in-game:
https://prnt.sc/l89icu

Have also tried enabling and disabling upnp
 

BuddhaSkoota

Admirable


You do not need to use port triggering, only port forwarding (virtual servers).

Also, you have not properly defined the External Port range in port forwarding. In the External Port entry, enter either a single port (3074) or a port range (27014-27050).

For your game, the Internal Port is a single port in the same range as the External Port.
 
Oct 19, 2018
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So does this look correct?
https://prnt.sc/l8aer1

Also, should UPnP be enable or disabled while using these? (It's currently disabled)

Thanks for your continued help!
 

BuddhaSkoota

Admirable


Your port forward entries appear to be fine now.

I would recommend enabling UPnP while playing the game, and disabling it when not in use. You can have it enabled along with having the port forward entries.
 
Oct 19, 2018
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It still gives me strict NAT type... Enabled UPnP and even rebooted the router, but no.
 

BuddhaSkoota

Admirable


Have you also allowed those ports in your PC's firewall? You may need to Google the instructions for your specific OS or firewall software.

Also, Google "what is my IP address" or look up your public IP address at a site like www.canyouseeme.org. The address displayed must match the WAN IP address of the router on which you are forwarding ports. If it doesn't, port forwarding will not work. You may have another router (ISP provided) or your ISP may be assigning you a private IP address (carrier grade NAT).

If the address does match your router's WAN address, then you might try temporarily using the DMZ function of your router. Put your PC's IP address in the DMZ and enable it. This will allow any port through to the PC, so you should only use this temporarily to see if you can get an open NAT.
 
Solution
Oct 19, 2018
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Okay so I have opened the specific ports in my firewall for incoming traffic. Should I also open for outgoing traffic?

The WAN IP address is the same as in the router.

I'm suspecting I have this carrier grade NAT thing, I just ordered a public IP from my ISP (for free) so we'll see if that works.

I'm not willing to try the DMZ quite yet.