I have never configured a firewall before, and I have several questions.
Q#1: Do I even need the 1721 router if I use the pix 506e on a flat network? I have been reading solutions that might suggest that I do not.
1721 --->HP4000m switch--->8 other HP 2500 switches...and 2 dns servers..thats the network.
Q#2: If keeping the router, do I need to configure anything in the router to communicate with the pix?
Q#3: How do I configure for VLANS and VPN in the pix? I am using NAT in the router as I am only using private ips '192.168.1.0'. I have 4 usable ips from the ISP. 220.127.116.11-157.