No; ISP cannot publish PPTP because GRE (IP-47) is not TCP or UDP. Jim Harrison MCP(2K), A+, Network+, PCG ----- Original Message ----- From: "RUH" <jruh@xxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Saturday, September 08, 2001 12:14 AM Subject: [isalist] VPN server behind ISA http://www.ISAserver.org Hi, I've got a router Zyxel P314 with DSL an fixed IP 80.xx.xx.xx This router send all incoming PPTP on the port 1347 to a W2K VPN Server. Beetween my router and the VPN Server I would like to Install ISA. I've got 2 NIC on ISA one on the same network of my router 170.xx.xx.xx and one on my LAN 192.XX.XX.XX. How can I configure ISA to let vpn packets passing thrue ? Thanks ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')