Help with port-forwarding an ROG Rapture router

Should be in WAN tho :( I don't know if ROG routers uses a different interface but I personally did own a Asus router and it's in WAN

I've been there, in those settings, nothing takes effect, tried setting the port forwarding on both the hosting machine, and on the WAN IP. Nada

There's something with this WAN IP address, and whether it should mirror the public IP

ASUS says they need to match, the internet says otherwise

We changed the WAN IP to static, and mirrored the public IP, but that sent the whole house internet down

!cgnat

Ok right this isn’t ac1

# We may have bad news for you :C

You may be under a CGNAT which is a method that ISP's use to conserve IPV4 IP's due to how limited they are now. What this means in plain terms is that your IP address is being shared with other people as your router goes to the ISP's router, by default this means port forwarding doesn't work.

We need to check if you are under a CGNAT and we got 2 options.

### Option 1: commands
Depending on your OS, run the following command:
- Windows: iex (Invoke-RestMethod -Uri "https://raw.githubusercontent.com/DominicTWHV/Is-It-CGNAT/refs/heads/main/windows.ps1")
- Linux: curl -s https://raw.githubusercontent.com/DominicTWHV/Is-It-CGNAT/refs/heads/main/linux.sh | bash
-# You should never run such things without reviewing and understanding the code

### Option 2: manually
Open your router's configuration interface. Somewhere, you'll see something like 'external' or 'public' IP.
If your external IP is in one of the following ranges, you're basically screwed as long as port forwards go:
- 10.0.0.0/8
- 172.16.0.0/20
- 192.168.0.0/16
- 100.64.0.0/10
- any IPv6 address/range - This shouldn't be a problem, but Minecraft's IPv6 support is still rather quirky. You're at your own, but we're happy if you share your experience.

## What do I do now?

You should ask your ISP for a public and IPv4 address (but this may cost you money).
NB: your internal IP should and most probably will be in one of the first three ranges, don't mix them up

Just to be sure

LoL, I looked into CGNAT as well, seems a dry hole

In that case, can you send a few screenshots of your router’s management dashboard?

Feel free to blur out the wan ip if you wish

Yeah, I'm comfortable with that, give me a few to mull over what you sent, and get those in here

Are you under cgnet?

Oh Dominic said it

Id like to look at the firewalls page if that exists, then its wan/lan, and we’ll see from there

If your interface is similar it should be on the homepage tho 🤔

If your wan IP says 10.X.X you probably under cgnet

WAN IP is wayyyy different

Weird

Because that's just a local IP address

So it means it's connected to another modem or something

You can definitely try using a traceroute

That is very weird

That doesn’t even look like a cgnat ip, as most cgnat addr would not be a 192.168.0 range, let alone .0.2

It would appear as if this router is actually behind another router/modem. One way you could verify this is running tracert google.com from the command prompt of any Windows PC connected to this router.

If your tracert's first 2 hops are both local (192.168.x.x), then this router is 100% behind another router.

What tracert might look like:

C:\Users\user>tracert google.com

Tracing route to google.com [142.251.40.206]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.0.2
  2    <1 ms    <1 ms    <1 ms  192.168.1.1

usually 2 hops are normal isnt it and 3 is under some sort of cg/ other modem?

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