Como corrigir uma falha na conexão com VPN (ipsec + ikev2)?

Question

Autenticação feita com certificados

ubuntu 16.04 + strongswan.

Cliente se conectando do win7, o certificado foi adicionado como dito no strongswan Wiki.

Config made também como em strongswan wiki, mas eu tenho erro: 'plutostart depreciado, então eu removi.

Então meu ipsec.conf :

config setup
     #plutostart=no

conn win7
     left=%defaultroute
     leftcert=vpnHostCert.der
     leftsubnet=0.0.0.0/0
     right=%any
     rightsendcert=never
     rightsourceip=10.42.42.0/24,2002:25f7:7489:3::/112
     keyexchange=ikev2
     auto=add

log:

Jun 28 03:20:26 myserver charon: 12[IKE] IKE_SA (unnamed)[2] state change: CONNECTING => DESTROYING
Jun 28 03:20:30 myserver charon: 13[NET] received packet: from MYIP[500] to SERVERIP[500] (528 bytes)
Jun 28 03:20:30 myserver charon: 13[ENC] parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) ]
Jun 28 03:20:30 myserver charon: 13[IKE] MYIP is initiating an IKE_SA
Jun 28 03:20:30 myserver charon: 13[IKE] IKE_SA (unnamed)[3] state change: CREATED => CONNECTING
Jun 28 03:20:30 myserver charon: 13[IKE] remote host is behind NAT
Jun 28 03:20:30 myserver charon: 13[ENC] generating IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(MULT_AUTH) ]
Jun 28 03:20:30 myserver charon: 13[NET] sending packet: from SERVERIP[500] to MYIP[500] (308 bytes)
Jun 28 03:21:00 myserver charon: 14[JOB] deleting half open IKE_SA after timeout
Jun 28 03:21:00 myserver charon: 14[IKE] IKE_SA (unnamed)[3] state change: CONNECTING => DESTROYING