Mobile IPsec with iOS error time over 6000 sec.

[n-harada]

Devices:
pfSense 2.1.3
iOS 7.1.1

I set up URL.
Mobile IPsec on 2.0 Device Setup (iOS)
https://doc.pfsense.org/index.php/Mobile_IPsec_on_2.0

iOS Device is error time over 6000 sec.

pfSense log:
None.

iOS error messages:
VPN Connection
an unexpected error occurred.

if used Safari to VPN site.
Not count reset.

Example change setting to none.
Phase 1 and 2 proposal Lifetime 3600 sec or 6000 sec.
DPD disable.

Ubuntu with racoon is equivalence.

[n-harada]

iOS log:
Jun  5 13:32:14 iPhone4 racoon[1248] <notice>: IPSec disconnecting from server 192.168.2.10
Jun  5 13:32:14 iPhone4 racoon[1248] <error>: failed to send vpn_control message: Broken pipe
Jun  5 13:32:14 iPhone4 racoon[1248] <warning>: glob found no matches for path "/var/run/racoon/*.conf"
Jun  5 13:32:14 iPhone4 racoon[1248] <notice>: IPSec disconnecting from server 192.168.2.10

I search error messages.
I find this site.

strongswan.org Wiki
http://wiki.strongswan.org/issues/290
http://wiki.strongswan.org/issues/596

Is this an Apple bug?
Thanks!</notice></warning></error></notice>