Configuring ISA Server and PIX 515 firewall back-to-back

[mashadif]

My company is having ISA Server, we want to connect ISA server with PIX. ISA has 2 NIC one for internal network and second will be connected to Inside interface of PIX firewall.

How do in configure my PIX so that all inside users can connect to Internet through our ISA Server.

The configuration of IP address is as given below:

ISA Server:
192.168.100.4 (interface connected to PIX Inside)
10.0.1.2 (interface connected to inside network)

PIX:
Outside: DHCP setroute
Inside: 192.168.100.3 255.255.255.0
DMZ: 172.16.0.1 255.255.0.0

Please suggest the configuration on PIX interfaces, so as to enable internal users to connect to Internet through ISA server.

Regards,

Mashadi

 

[NetworkGhost]

Will the users connected to the ISA Server be natted?

 

[mashadif]

Yes all the users should be natted.

Please suggest solution in both the scenario:

Natted ?
not-Natted?