CGNAT Check

eero

How to find the WAN IP on eero systems

A simple guide to locating the WAN or internet IP in eero so you can compare it against your public IP.

Open the checker

Step-by-step

Where to look in eero systems

  1. 1.Open the eero app and select your gateway device.
  2. 2.Look for internet details, WAN details, or advanced network information.
  3. 3.Find the WAN IP or external IP entry if the app exposes it for your setup.
  4. 4.Use that IPv4 value in the checker.

If the menu labels differ on your model, use the full WAN-IP guide. Once you have the internet-facing IPv4, run the best-effort CGNAT check.

Device-specific check

Confirm which device owns the WAN connection

eero is app-first, so select the gateway eero rather than a leaf unit. If an ISP gateway remains ahead of it, compare both devices: the eero WAN can be private even when the outer gateway holds the public address.

Notes

Before you compare the IP

  • Some app-first systems expose less raw status data than traditional web admin pages.
  • If you use an ISP gateway ahead of eero, the eero WAN IP may be private even when the ISP gives the gateway a public IP.

FAQ

eero router questions

What if I cannot find the WAN IP in eero?

Check whether your ISP gateway shows the value instead. In some setups the gateway is the real internet edge device.

Does a private eero WAN IP always mean CGNAT?

No. It can also mean the eero is simply behind another router or gateway inside your home.