看了眼WIKI,While iOS 8 and Mac OS X 10.10 now natively support IKEv2, the VPN application's GUI has not yet been updated to allow configuration of such connections on the devices themselves. 原生支持IKEv2.
conn IPSec-IKEv2 keyexchange=ikev2 leftid=@you.domain.in.cert #your servr name in cert "server.pem" rightid=*@every.string.you.want #define a suffix for user account auto=add
conn IPSec-IKEv2-EAP also="IPSec-IKEv2" rightauth=eap-mschapv2 #define auth type to EAP rightsendcert=never #do not need client cert eap_identity=%any #any user can login successfully
conn IPSec-IKEv2-EAP also="IPSec-IKEv2" rightauth=eap-mschapv2 #define auth type to EAP rightsendcert=never #do not need client cert eap_identity=%any #any user can login successfully