ISA doesn't support multiple public interfaces. All you'll get for your trouble is a log full of "spoofed" packets. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/authors/harrison/ Read the books! ----- Original Message ----- From: "Stephen I. Woolhead" <Stephen.Woolhead@xxxxxxxxxxxxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Friday, May 17, 2002 8:35 AM Subject: [isalist] Protocol level routing with ISA and multiple ISPs http://www.ISAserver.org I have an ISA server with two connections to the internet. The first is a leased line connection with an IP that our domain and MX records resolves to, the second is an ADSL connection. Now what I want to do is set the ISA server up so that that I can have our mail and traffic for our web site be routed over the Leased line and every thing else be routed over the ADSL line. This translates into the following Our MX records point at an IP address on the Leased Line. www.somedomain.com resolves to an IP address on the Leased Line. ISA has server publishing rules for SMTP and Web publishing rules for www.somedomain.com. That takes care of incoming traffic. For outgoing traffic I want to force traffic from 192.168.1.100 -> 192.168.1.150 (the servers doing web and SMTP) to be routed over the Leased Line, but traffic from all other address to be sent over the ADSL line. How do I configure ISA/RRAS to do this? Can I tell the machine to use a different gateway based on source address? Is doing this by source address going to work if using ISA publishing, as the packets will get regenerated with ISA as the source, won't they? Is there a way to route by protocol? Having got the above to work is there a way to get ISA to load balance over these two connections, or am I asking too much here? Stephen. ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')