You can't (right now). ISA NAT doesn't handle IPSec. You can use a PPTP-based VPN through ISA IF the internal client is a secureNAT. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/authors/harrison/ Read the books! ----- Original Message ----- From: "Brian Ricks" <isanews@xxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Wednesday, April 10, 2002 2:33 AM Subject: [isalist] VPN Client through ISA http://www.ISAserver.org I would ike to be able to connect a client inside an ISA firewall to a VPN server on the other side. When trying to use the MS client to connect or the IPSec client from the VPN provide, the authentication fails. The service never seems to respond. How can I pass this information through the firewall (or can I)? ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')