I am designing a network of 50 users from scratch. Security is very important due to HIPAA and a few other regulations. My first thought was to use the Cisco ASA 5515-X IPS as my external firewall and the Cisco 2901 as the internal firewall and policy-based routing. Is a two firewall dmz necessary or will one of these firewalls be sufficient?
What would be a suitable internal router to hang my switches off of? Looks like I may need a few more Ethernet LAN interfaces than the 2901 provides.
I am designing this network with site to site VPN, IPsec, 3DES/AES, and HIPAA in mind.
Any insight or suggestions?