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SIM Card in 4G LTE Router

merm89
Level 1: Joiner
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Registered:

I have an O2 business sim and using it in an TP-Link wireless router which on it's own, works fine.

 

The issues come when I'm trying to set up port forwarding/virtual servers (as TPLink calls it) to access a CCTV server from the public internet connected to the router via ethernet - I can't seem to get it to work - it just times out.

 

The CCTV server works fine internally so the device is working. I have tried the IP address as well as assigning it a dynamic DNS.

 

Also the public IP address shown in the TPLink interface is different to what I get when I search "find my ip" in google.

 

Is this a configuration issue or an O2 limitation?

 

Thanks.

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madasaf1sh
Level 77: Grand Master
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Registered:

@merm89 

 

It is down to the network configuration of o2, which uses a technology known as CGNAT (carrier grade network address translation).

If you want a public IP for the camera, you will have to look at one of the Niche SIM providers such as ScanCom or AAISP

--
iPhone 16 Pro Max - o2 and Spusu
Xperia 1V - Spusu

--
This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company

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madasaf1sh
Level 77: Grand Master
  • 11629 Posts
  • 64 Topics
  • 3163 Solutions
Registered:

@merm89 

 

It is down to the network configuration of o2, which uses a technology known as CGNAT (carrier grade network address translation).

If you want a public IP for the camera, you will have to look at one of the Niche SIM providers such as ScanCom or AAISP

--
iPhone 16 Pro Max - o2 and Spusu
Xperia 1V - Spusu

--
This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company
Message 2 of 2
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