2) Hardware. Hardware firewalls are separate pieces of hardware installed in your network that running independently of your computers. There are two (2) types of hardware firewall: a) Routers with Firewall capability inside them and b) A dedicated Firewall appliance.

Nov 26, 2019 The Best Hardware Firewall Review & Buyers Guide Hardware firewalls are like routers but with more features. Today, many wired routers and wireless routers integrate a hardware firewall. Still, they lack the features of true hardware firewalls. Hardware firewalls are placed in between the modem and the router. When do you need a hardware firewall? - Spiceworks Jun 27, 2011

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