GlobalProtect cert auth alternative

[Sahir_Algharibih]

Hi all,

We are using Cert authentication for identify check and make sure the device connected to GlobalProtect is a domain joined device. We are having issues with GlobalProtect Cert authentication when users travelling and connecting to a captive portal, where some captive portals represent their cert to the FW portal(man in the middle). This causes the FW to reject the connection as the cert doesn't match what is configured on the cert profile for cert authentication.

I have few questions:

- Does Portal Cert authentication and Gateway cert authentication follow same process? By that I mean, does Gateway cert authentication happen before the tunnel is created, or after tunnel is created and cert presented inside the tunnel(which could solve the issue)?

- Is there an alternative way for identity authentication? for example, using a water mark authentication like a unique Reg key in  Windows registry like using custom checks?

any other thoughts/suggestion for identity authentication?

Thanks!