When I started developing the virtual firewalls webinar, it looked like a simple project: define what a virtual firewall is and explain the architectural options (see the diagram).
The virtual appliances section was easy: it describes a sample VM appliance (vShield Edge) and interesting scale-out architecture (Embrane Helios). There are numerous other VM-based firewall appliances out there, but I didn’t want to turn the webinar into a Virtual Appliance Marketplace buyer’s guide.
VM NIC firewalls section was the hardest one: it started as a description of vShield App and Juniper’s Virtual Gateway, and then I decided to include products offering packet filters and added Nexus 1000V.
The service insertion section is still slim: there’s Cisco’s VSG and HP’s Tipping Point, and Cisco is the only company I’m aware of that does service chaining in a shipping product.
Have I missed something? Please write a comment.