Port forwarding in 4G modem (huawei) + Router (asus) (pics)

modemnat;port-forwardingrouter

I have a 4g router (huawei) from my ISP in which I have been able to successfully open the ports when I connect a computer by the ethernet cable. However, it seems impossible once I connect my own router (asus). These are the steps I follow:

1) Disable the firewall

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2) Activate the DMZ towards my own router:

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3) Disable the ISP router DCHP service

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4) Open the ports towards my own router

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5) My own router is configured as wireless router (I also tried as an access point). This is why I get the warning: The WAN IP is not the external IP

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6) I set a static IP

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7) I activate the DCHP (I get this LAN IP):

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8) Finally I open the ports toward the computer

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However no luck… No idea what I am doing wrong.

Please could anyone share some advice?

Best Answer

I have the same issue (different 4G modem) however I figured out that the issue is from the 4G (data cellular)

turn out that wireless carrier don't handle your internet connection the same as a normal ISP (kind a make sense in away as the primary use is for one device / mobile phone)

So the quick answer is, we can't do port forwarding on data cellular (4G).

UPDATE : after more research, I figured out that with some carrier you can just change the "APN" settings, and then have NAT / Port forwarding / DMZ

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