TL-MR3020 Port Forwading with3/4G USB modem

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TL-MR3020 Port Forwading with3/4G USB modem

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
TL-MR3020 Port Forwading with3/4G USB modem
TL-MR3020 Port Forwading with3/4G USB modem
2021-08-18 17:44:34
Model: TL-MR3020  
Hardware Version: V1
Firmware Version: mr3020nv1_en_3_17_2_up_boot(150921)

I used  the MR3020 with an USB 3/4G USB modem it to replace my ISP adsl router.

 

I disabled the wifi and setted for 3/4G only and no WAN port, so the RJ45 becomes the LAN port.

DHCP, DNS all disabled - DHCP serve and NOIP for DDNS on my internal server.

 

So, MR3020 is used basically as a gateway from internal to extenal and vice versa.

 

To this LAN port, i have a switch / AP with DD-WRT. 

 

Considering the network, all is working perfectly, except PORT FORWARDING.

 

the USB dongle have intenal IP 192.168.1.1 and extenal IP 192.168.1.100

The MR3020 have the IP 192.168.80.1

The 3/4G external IP is 201.5.350.24 as shown by whatsmyip.org.

 

But port forwarding is simply not working. No access from the internet to my host.

 

Any clue?

 

Thx in advance.

 

I disabled the wifi and setted for 3/4G only and no WAN port, so the RJ45 becomes the LAN port.

DHCP, DNS all disabled - DHCP serve and NOIP for DDNS on my internal server.

 

So, MR3020 is used basically as a gateway from internal to extenal and vice versa.

 

To this LAN port, i have a switch / AP with DD-WRT. 

 

the USB dongle have intenal IP 192.168.1.1 and extenal IP 192.168.1.100

The MR3020 have the IP 192.168.80.1

The 3/4G external IP is 201.5.350.24 as shown by whatsmyip.org.

 

DNS works, surfing the net, everything works, but port forwarding is simply not working. No access from the internet to my host.

 

Any clue?

 

Thx in advance.

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Re:TL-MR3020 Port Forwading with3/4G USB modem
2021-08-20 09:56:55

@PauloVen 

Hi, what is the internet IP/IPv4 address on the MR3020?

I think the issue might the USB dongle did not provide a public IP for MR3020 and you might need to contact with the USB dongle support to require a public IP address.

 

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