I have a small network consisting of 2 servers and 8 workstations. We work with a database program and we are starting to use the Internet more and more. As our resources increase in value, I would want to improve on the security of our network by adding a Cisco ASA 5505. At the moment we just have a router using NAT. I have done some research and it seems to me that the Cisco ASA 5505 is a good solution that we will be growing into with the development of a DMZ (in time).
1. Would this be a good place to start with network security? Does anyone have any other recommendations?
2. Do you need a static IP address to start using the ASA 5505, without going into all of the networking options in the begining?
3. Are there yearly update fees with the use of an ASA 5505 + Security Plus module?
Any guidance would be greatly appreciated.