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At the moment I was able to get internet on my raspberry pi 3a+ with Huawei e3372h-153, a 4G LTE USB-dongle. When I enter address http://192.168.8.1 it gives me a config web page of a dongle. I changed APN there to the one that service provider gave me to get static IP address. On USB dongle's web page I can see correct WAN static IP address that was assigned from service provider. But I can't reach anything from out side. And there is no port forwarding on USB modem web page.

If I put this USB modem to my router and forward ports to Raspberry Pi, everything works fine.

Is there anyway to reach my raspberry if I connect USB dongle to raspberry USB port?

Added more info:

If I plug this USB dongle to my windows 10 PC it works fine, brings IP from service provider and set it as my local IP address, if I do ipconfig

IPv4 Address. . . . . . . . . . . : Public IP address

And the I can't reach address 192.168.8.1

If I put this dongle to RPi I have to make a mode switch

12d1:157d to 12d1:14dc

But when I look at windows drivers there is no switch they use only 12d1:157d How can I see what mode windows use to connect to internet.


http://blog.asiantuntijakaveri.fi/2015/07/convert-huawei-e3372h-153-from.html as here was mentioned that Huawei e3372h-153 can be used as Hilink modem with double NAT and Stick mode with only one layer of NAT. It seams like windows are using Stick mode and Linux Hilink...

But on that website mentioned to change from Hilink to Stick mode need to overwrite firmware. On windows I can't overwrite firmware because it is in stick mode. It seems on a new version somehow I can chose what mode to use.

  • What is huawei e3372h-153? A wifi or wired or 4G dongle? What is APN? – Ingo Jan 23 at 18:55
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    Its an LTE dongle 4g, en.wikipedia.org/wiki/Access_Point_Name – ekavet Jan 23 at 19:41
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    It doesn't answer my question. For what do you use the router? Do you have a second router for the different network? Please address me with @Ingo otherwise I won't see your reply. – Ingo Jan 24 at 11:25
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    You may want to explain what "mode switch" from 12d1:157d to 12d1:14dc you're talking about. Drawing a diagram for the network topology that works may also help. Is this dongle a PPP modem, a TCP/IP via USB, or something else? – Dmitry Grigoryev Jan 25 at 8:11
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    @Dmitry Grigoryev "mode switch" switch from usb memory stick where it holds drivers for windows to modem mode. On windows it acts like PPP modem, on linux TCP/IP via USB. On windows it brings Ip from provider and I can reach my computer from outside, on linux its more like a router with dhcp. – ekavet Jan 25 at 8:38

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