Dynamic IP address

[Prydd21]

I need a public IP address, how do I go about this please?

[Prydd21]

Thanks for your reply.

I’ve already tried what you have said.

that’s why I asked if you can screenshot the exact page and I can copy it word For word.

that rules out any errors.

im not in a rush so when you have got access will do.

cheers

[clink]

Hi All,

Just to add something here - I came across this conversation while having the same issue myself - My Public IP (188.30.x.x) was showing as different to the one shown in the router -  (192.0.0.x). I checked the advice listed here - and saw that the default profile was set to "3internet" already - but it was said to create a new one - which I did. Literally all that needs to be set is changing the mode to "Manual" and adding "3Internet" to the APN section, then save the new profile - this is identical to the default, however, once set, I could see that my WAN IP in the Web GUI now shows as 188.30.x.x. This solved my issue, I hope it can maybe help others. 

For others wanting to set this, log into your ZTE Router - and in the Blue Network Map, select "Settings" under "5G" (or 4G+ / 4G etc, depending on your connection) - in the "My Router" Section. On the next Page select "APN". On the next Page, change the Mode to "Manual", then "Add New" - this creates a new, blank profile. Give the profile a name - I used "CGNAT Test" and "3internet" in the APN section. Everything else can be left blank. Select "Apply" to save it. You just need to make sure that the "Profile" section shows your new profile - I selected "Set as Default" to make sure it always uses this profile. 

Once completed, I could see my WAN IP changed to the correct one, and not a CGNAT address (CGNAT SHOULD be between 100.64.0.0 and 100.127.255.255, but maybe Three are using ones outside this scope for some reason - having 192.0.0.x is a big indicator it is a CGNAT address).

I hope this helps other users.

Thanks,

[Valpid]

Man, you make my day! Thank you a lot and especially for screen shots. I Just try it and I can see my IP changed from 10.**** to 94.****. Will try port forwarding and let everyone know. 

It is really shame, I  called support for public ip and got answer "you can't have it"  when actually is just a matter of configuration on my side. 

[clivejo]

So called Network Support are useless and don't seem to even have a basic knowledge of how the network operates.  They talk about wifi signals and the only solution they offer is "Turn the device off and on again"

[PeteG]

Hey, Prydd21.

Are you a Home Broadband user? Or are you on a mobile phone? 

Pete.

[Prydd21]

I have a 5G router that is on CGNAT,?so, as it shares the IP address with others I can’t port forward, which means I can’t contact my alarm panel remotely. This was not mentioned in the contract. It’s a deal breaker.

[PeteG]

We don't normally use CGNAT on our Home Broadband connections. 

If you got your router from a 3rd party company, or changed the network settings on it, it might not be configured correctly. 

The device needs to be configured to use the "3internet" APN. If you got the router from a 3rd party, pop into the admin page and update the setting. 
If you got the router from us, you can try updating the setting, or you can complete a factory reset which will set it back to 3internet by default. 

Pete. 

[Prydd21]

Pete

i am afraid you are mid informed.

it has already been established that 3 do use CGNAT, it’s been their policy for some time.

I got the router through 3, I am still in the cooling off period. I had a long discussion with 3 customer services yesterday and they got back to me to say they can’t give me a dynamic IP address.

it has nothing to do with the set up.

sorry to bring your response down but that’s the truth.

[PeteG]

There seems to be some misunderstanding, Prydd21. 

When it comes to home broadband, you are able to get a non CGNAT public facing IP address. I use this at home myself, and there are multiple members here on the Community who can say the same. 

Your original post was asking about a public IP address. But you've mentioned now that you spoke to the team about a Dynamic IP address. These aren't the same thing. I'm not sure why the team advised you that we can't give you a Dynamic IP address, as the IP address you're given should be public, and is dynamic. It will change periodically, usually after a reboot, disconnect, or after the DHCP lease time expired. 

What we cannot give you is a Static IP address. I'm sorry if that's something you really need, but it's not something that can be provided on Three Broadband.

Pete.

[Prydd21]

Pete

You need to speak with your team.

It is really bad when advice from the same company conflicts and it does not fill me with confidence.

They are resolute they can not and will not give a public/ dynamic IP ADDRESS, PERIOD!!

I have wasted hours speaking to people who have a difficulty in understanding my queens English and I have difficulty in understanding them.

If you look on ISPREVIEW forums, ZeroTier forums, and Tailscale forums you will see what a problem people are having with Three 5G routers, namely you CANNOT port forward on them.

You CANNOT run SELFMON APP to control alarm panels remotely because you share an IP address and you CANNOT port forward on a shared IP address.

Simply rebooting does absolutely nothing when the IP is shared which is referred to as CGNAT.

I’ve exhausted numerous software and forums to try to enable this to work and if you think a reboot will work I’m sorry to advise you it will not.

Regards

Bob