[Openswan Users] Openswan:Ikev2:received packet that claimed to be (I)nitiator, but rcookie is not zero?

[SaRaVanAn]

Hi,
   I tried negotiating IKEv2 in openswan, but i am getting the below error
message. Please find the logs below

received packet that claimed to be (I)nitiator, but rcookie is not zero?
Feb 28 21:51:38 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
sending
notification v2N_INVALID_MESSAGE_ID to 172.31.114.239:500
Feb 28 21:51:48 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
received packet that claimed to be (I)nitiator, but rcookie is not zero?
Feb 28 21:51:48 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
sending
notification v2N_INVALID_MESSAGE_ID to 172.31.114.239:500
Feb 28 21:51:58 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
received packet that claimed to be (I)nitiator, but rcookie is not zero?
Feb 28 21:51:58 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
sending
notification v2N_INVALID_MESSAGE_ID to 172.31.114.239:500
Feb 28 21:52:08 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
received packet that claimed to be (I)nitiator, but rcookie is not zero?
Feb 28 21:52:08 uxchas233 pluto[8164]: packet from 172.31.114.239:500:
sending
notification v2N_INVALID_MESSAGE_ID to 172.31.114.239:500

Openswan ------------------------------------------- Openswan
172.31.114.239                                     172.31.114.233

/etc/ipsec.conf
++++++++++
# basic configuration
config setup
        # Debug-logging controls:  "none" for (almost) none, "all" for lots.
        # klipsdebug=none
        # plutodebug="control parsing"
        # For Red Hat Enterprise Linux and Fedora, leave protostack=netkey
        protostack=netkey
        nat_traversal=yes
        virtual_private=
        oe=off
        # Enable this if you see "failed to find any available worker"
        nhelpers=0
    interfaces=%defaultroute

conn west-east
    type=transport
    left=172.31.114.239
    right=172.31.114.233
    leftsubnet=10.0.0.1/32
    ikev2=yes
    auto=add
    authby=secret
    pfs=no
    rekey=yes
    ikelifetime=600s
    keylife=600s
    keyingtries=0

/etc/ipsec.secrets
++++++++++++++
172.31.114.239 172.31.114.233: PSK "mypresharedkey"

 Please help me out.
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