Hi all I am trying to configure ISA to allow a Cisco VPN client connection on an internal (behind ISA) workstation pass though ISA server. The user authentication works well, I obtain an ip address from the vpn server but I'm not able to ping anything. It seems that the connection works but not the data transfer. I followed the instruction in http://www.isaserver.org/articles/IPSec_Passthrough.html. What can I do?