EAP-TTLS/EAP-PEAP Certificats

Hi all, I have just one question about client certificats with EAP-TTLS or EAP-PEAP. I would like use certificats client with authentication MSCHAPv2 it's possible ? It's possible to use client certificats for create TLS tunel and use mschapv2 auth inside ? In my test the authentication is MSCHAPv2 or client certificat but not both in same time . Thx. Vincent