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CGN IP?

noobland3601 — Sat, 15 May 2021 16:59:30 GMT

I'm trying to set up a Sven Coop server for my friends, only to be informed that they can't join, the port forwarding was done correct, then they tell me that I have a "CGN IP" and that I can't host a server? Please help me

Re: CGN IP?

Keith_Beddoe — Sat, 15 May 2021 18:41:02 GMT

@noobland3601

Which BT Broadband package do you have, and which BT Home Hub are you using?

BT Retail do not use CGNAT IP (Shared) addresses on their fixed line broadband services.

Re: CGN IP?

licquorice — Sat, 15 May 2021 19:13:53 GMT

Its simple to check. If your IP address shown in the hub stats page is the same as that shown by an IP checking website such as what's my IP, the you are not CGNATTED.

Re: CGN IP?

noobland3601 — Sat, 15 May 2021 21:51:05 GMT

For the package, I'm using the Fibre 100 with Halo 1, and I'm using the Smart Hub 2.

Re: CGN IP?

Keith_Beddoe — Sun, 16 May 2021 05:49:38 GMT

@noobland3601 wrote:

For the package, I'm using the Fibre 100 with Halo 1, and I'm using the Smart Hub 2.

Then you will not have a shared IP address. (CGNAT). Your problem is due to something else.

Re: CGN IP?

noobland3601 — Sun, 16 May 2021 06:56:39 GMT

Thanks for your help, I'll check over the porr srttings. By the way, what does it mean when there's a green tick next to the uPNP section at Port Forwarding?

Re: CGN IP?

Keith_Beddoe — Sun, 16 May 2021 07:01:34 GMT

@noobland3601 wrote:

Thanks for your help, I'll check over the porr srttings. By the way, what does it mean when there's a green tick next to the uPNP section at Port Forwarding?

I do not use a home hub, but I think you will find that ports are being forwarded automatically because you have UPnP enabled on the home hub settings. This will cause conflicts if you are trying to manually forward any ports, so you may be better to turn it off.

You may be able to get advice from other forum members who do have a home hub.

Re: CGN IP?

noobland3601 — Sun, 16 May 2021 07:06:07 GMT

Okay, thanks for your help.