L2TP VPN with Certificates
I'm trying to configure L2TP VPN with Azure MFA (via NPS Azure Extension) and use certificates instead of PSK.
So I have the MFA part working with PSK, but I'm having trouble understanding the certificate part. I created an IPSec / RSA cert (I used the CSR generator from the Firebox, and issued a cert using our internal enterprise CA), and it looks to be properly installed, as I can select it in the L2TP VPN -> IPSec options.
I'm assuming this should work now, but now what do I do on the client? I'm assuming that I should installing a cert on any device that needs connectivity, but what cert do I use?