I don't see much written about the Firewall, only that it has one. I was wondering what Firewall technology the Firewall uses. Stateful Inspection, packet sniffing...
AirPort Express Base Station, iOS 5.1.1, It's the Airport Extreme Base wasn'
NAT
NAT is not a Firewall. It is a layer of security, but it is in no way a Firewall. There are 4 types of Firewalls, 1) Packet Filtering; 2) Circuit Level Gateway; 3) Application Level Gateway; 4) Stateful Multilayer Inspection Firewall. #2&3 are both Proxy based Firewalls and #4 is Packet Filtering. Network Address Translation (NAT) is not considered a Firewall. I hope that's not what Apple is considering a Firewall.
NAT is not a Firewall.
You might want to take that up with Apple, since that is how they advertise the product in their specifications.
Hmm, this is the first time I've been disappointed with Apple. NAT is a service or feature typically provided by a firewall, but it's not a firewall. I guess now, in order to have a session or application (packet) layer inspection, I'll need an additional appliance. Interesting because the native 'Firewall' app under Sys Pref menu in OSX does have a good bit of host-level firewall functionality, but I was really wanting something out at the perimeter boundary, rather than at the workstation level.
What type of Firewall technology does the Airport Extreme use?
