I am trying to connect to our environment through Cisco Remote Access IPSec VPN from iPhone 4. Below are the versions
iPhone OS : 4.2.1
Cisco VPN: ASA5520, version 8.0(5)
I am able to connect successfully however I cannot connect to any server after VPN is established.
At the same time, I am able to connect over VPN via any internet PC. The difference I have observed till now is that when an Internet PC connects, the protocol encryption on ASDM shows 'IKE IPsecOverNatT 3DES' for the active session. On the other hand, when I connect through iPhone the protocol encryption is 'IKE IPsec 3DES'.
Is it possible to force iPhone to connect on IPsecOverNatT. Please suggest.
I have almost the same configuration as you have - and it works.
There is only one difference - split-tunnel.
Can you try your IPhone traffic have fully tunneled?