Get public facing IP address. Different websites giving different IP's

Question

I don't know too much about networking concepts, trying to get my public facing IP address programatically (powershell preferred)

Trying these different websites

• https://www.whatismyip.com/ # Only this one seems to work when I am trying to RDP into the machine (Azure NSG inbound rules)
• ipinfo.ipidea.io # this gives my modem/ISP address
• https://api.ipify.org/?format=json # this gives my modem/ISP address
• ifconfig.me/ip # this gives my modem/ISP address

Is there an alternative way to get the IP address shown by whatismyip.com website [for free]?

please don't go into "pay them you cheap pos"; It's a company project, and my boss man doesn't want to spend anything currently

I could use my local computer IP address, but we use a VPN (company wide), and hoping to get the address of this VPN provider

Edit: adding more clarity

I think I need the IP address of the VPN provider I am connected to. The browser/whatismyip is somehow able to get it. I need this address programmatically. Are there any free other APIs that provide this info?

Answer 1

Given you want to use Powershell,

you can try to invoke a Web request to the api.ipify.org

(Invoke-WebRequest -uri "https://api.ipify.org/").Content

Or

Invoke-RestMethod https://api.ipify.org

The response will be your IP address.

If you want the VPN IP address, you can use the code below

(Get-NetAdapter -InterfaceDescription "Your VPN Connection Name").IPv4Address

To find the VPN connection name, assuming you are using Windows, you can check the VPN connections on the Network & internet settings.

More info here - https://support.microsoft.com/en-us/windows/connect-to-a-vpn-in-windows-3d29aeb1-f497-f6b7-7633-115722c1009c

Edited to include the option shared by @mklement0