[Openswan Users] STATE_MAIN_I3 failed: INVALID_ID_INFORMATION

[Tharanga]

Hi all,

i am conneting to my Provider via IPSEC. i have enabled (both parties)
3DES,SHA1, and DH group 5, witha  a  preshared key. (iam connecting to a
cisco pix)

but when i try to establish a connection it says

Notify Message Type: INVALID_ID_INFORMATION


my my ipsec.conf look like this.

config setup
         interfaces="ipsec0=eth1"
         plutodebug= all
          klipsdebug= none


conn tunnelipsec
        type=tunnel
        authby=secret
        #keyingtries=2
        aggrmode=no
        left=203.94.xx.xx
        leftnexthop=203.94.xx.y
        leftsubnet=147.120.0.0/24
        right=194.247.yy.yy
        esp=3des-sha1
        ike=3des-sha1-modp1536
        keyexchange=ike
        #compress=yes
        #xauth=yes
        pfs=no
        auto=start

pls let me know what is missing in this config.

many thanks,
Tharanga