I have a fully functional PIX environment utilizing the VPN and DMZ functionality of the PIX. I now have to allow Exchange traffic via the internet. I started off making our users use the vpn client to connect to our exchange server, but it does not work the majority of the time due to customer premise equipement. I am now required to implement an ISA server in order to serve up Exchange over the internet without the use of a vpn client.
Can someone advise me as the best way to implement an ISA in my current environment? My first thought is to install one nic on the the internet and the other in the dmz. Then I can still use the pix to control traffic between the dmz and the servers in the internal network.
I welcome all input. But please remember that I have to implement the ISA due to needs. If the PIX could serve up exchange data (without the need of a vpn client) I would consider that too.
Thank you in advance.