Public IP address for 4G router

OnyxSecurity — Tue, 20 May 2025 17:04:56 GMT

Hi,

I have a TP link Archer MR500 4g router for CCTV purposes.

I can not get a connection to the router via any ddns service. I believe the IP it is broadcasting is not a public IP address.

Is there anyway around this? can EE change the data sim to have a public IP address?

Many thanks

Re: Public IP address for 4G router

XRaySpeX — Tue, 20 May 2025 20:51:53 GMT

@OnyxSecurity : You do get a public external IP addy but it is not unique to you.

You are finding yourself up against a limitation of EE's mobile network. The EE mobile network uses Carrier Grade NAT (CGNAT) resulting in a double NAT, which games consoles often object to, which means you don't get your own public IP address but share it with other users. So you can't be uniquely id'ed on the Net & therefore your LAN cannot be addressed from outside for unsolicited accesses. This is unlike fixed BB.

If this occurs there is nowt you can do to avoid it.

topic Re: Public IP address for 4G router in Mobile Broadband

Public IP address for 4G router

Re: Public IP address for 4G router