ISA Server 2006: Forward to Council Proxy

[rlen]

Hi All,

We have an ISA proxy on site which we want to use for web caching... This means our clients need to use ISA as their web proxy rather than the Council's Proxy.

So my problem is that we need to route web traffic (http/https) from our ISA Web Proxy to the councils Proxy without Natting, as the Council uses IP to username to authenticate device and user.

The current setup is as follows:

Our ISA proxy: 10.100.1.252:8080
Our Council proxy: 10.100.10.250:8999

However... after much messing about with ISA, I'm at a loss to how I can get this to work!

Any Ideas?

Cheers

rlen

[DMcCoy]

Does the ISA box have one interface on each and what are the subnet masks?

[rlen]

I have two interfaces:

One connecting to the Councils network which has the councils gateway as the default gateway for this nic
IP - 10.100.1.251
Subnet Mask - 255.255.248.0
Gateway - 10.100.1.254

The other nic is connected to our internal network without a gateway.
IP - 10.100.1.252
Subnet Mask - 255.255.248.0
Gateway - NONE