Umbraco Forms IP Address tracking

Questions
1

If you’re using something like Sucuri as a website firewall along side with umbraco forms, how can we track IP addresses outside of the firewall for users who make form submissions? If the IP address tracking is turned on, the firewall IP address is provided in the back-end. Any thoughts?

2

Here’s the related docs for forms:

and Sucuri:

The XFF header should be used by default. But you you look at the MS docs you can set up a custom header if you need to - which might be the case for Sucuri:

Which could look something like this, though it’s hard to tell from the Sucuri docs:

builder.Services.Configure<ForwardedHeadersOptions>(options =>
{
    options.ForwardedForHeaderName = "HTTP-X-SUCURI-CLIENTIP";
});