After much searching and testing and debugging, I'm asking IF the iPhone can do an L2TP tunnel to a Cisco PIX. I can get IKE done but then the PIX decides it wants to do IPSEC for the rest. The phone doesn't seem to support IPSEC. I found this out after going through the pix wizard to see if I missed anything obvious. The wizard states that "The PIX does not support native L2TP itself. It has to be used with IPSec." My debug is below...thoughts would be appreciated! I know this works with ASAs and 3000 VPN concentrators as there are descriptions of the phone working with those. Thanks!