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A broadband router, for example, makes a sensible hardware firewall since it also handles part of connecting to the Internet, but there are also hardware firewalls that are sold as individual components. When a hardware firewall is installed it comes with an easy to user interface that lets you set the authentication information such as security certificates and password protection. Although setting and configuring the firewall maintains good security, many hardware firewalls work almost as well with minimal user direction. While common local networks can be connected on regular firewall enabled routers, one can opt for business networking hardware firewalls for larger company networks. The mode of functioning of a hardware firewall is via the process of packet filtering that is basically the analysis of the data packets that are transferred.