eap type for Windows client authentication without certificate

[Tal Nur]

Hi All,
I think I'm asking simple question.I installed FR 3.0.19 for eduroam and I used configuration files from eduroam.org.I noticed that my Windows clients must install CA certificate to successfully log in.My question is what type our EAP I should to use to allow them be authenticated without certificate?Is it possible to use both types of authentication at the same time?
Here is my eap file:
eap {                default_eap_type = peap                timer_expire     = 60                ignore_unknown_eap_types = no                cisco_accounting_username_bug = no                 tls {                        certdir = ${confdir}/certs                        cadir = ${confdir}/certs                        private_key_password = QwerAsdf1992!                        private_key_file = ${certdir}/server.key                        certificate_file = ${certdir}/server.pem                        ca_file = ${cadir}/ca.pem                        dh_file = ${certdir}/dh                        random_file = /dev/urandom                        fragment_size = 1024                        include_length = yes                        check_crl = no                        cipher_list = "DEFAULT"                }                 ttls {                        default_eap_type = mschapv2                        copy_request_to_tunnel = yes                        use_tunneled_reply = yes                        virtual_server = "eduroam-inner-tunnel"                }                 peap {                        default_eap_type = mschapv2                        copy_request_to_tunnel = yes                        use_tunneled_reply = yes                        virtual_server = "eduroam-inner-tunnel"                }                 mschapv2 {                }         }