I have a customer who currently is using an ASA5520 as a firewall between his network and the Internet. He now wants remote VPN access with SecureID tokens for authentication added which is fine but he has also brought up NAC. Can I simply insert a NAC between the ASA and the internal network as in this Cisco document:
That looks like it will work fine for VPN access but what about the outgoing Internet access for the current internal users will that be OK still or do I need to use a separate ASA for VPN access with NAC. Oh yes will I need an ACS as well or can the NAC talk directly to the SecureID appliance either using radius or RSA's own protocol ? Sorry if these are dumb questions but he dropped the NAC stuff on me at the last minute and I just need to know the basics quickly and can work out the details later.