"Working" initiator, can send an IKE_INIT with a proper SA payload (KE, Ni not
        implemented yet)
Working initiator for IKE_INIT (can get a response from strongSwan running the default IKEv2 sample conf, http://www.strongswan.org/uml/testresults/ikev2/host2host-cert/moon.ipsec.conf)