A firewall either a hardware or software device. A hardware firewall is a component that is connected amid the network and the device for connecting to the Internet. A software firewall is a database that is installed on the computer with the Internet connection. Similarly, there are computers with particular software programs that are placed behind the router and it has the only function is to provide the network firewall.
A firewall can be a built into a router or a stand-alone device. Although such components may, in fact, be computers with firewall software, they are still judged “hardware” firewalls. They tend to deliver superior performance, are easier to manage and may offer greater safety than a software-based firewall in each user’s machine. Hardware firewalls can be effective with tiny or no configuration, and they can protect every machine on a local network. Most hardware firewalls will have at least of four network ports to connect other computers, but for larger networks, business networking firewall alternative is available.
A hardware firewall uses packet filtering to inspect the header of a packet to administer its source and destination. This information is compared to a set of predefined or user-created rules that determine whether the packet is to be promoted or dropped.
A computer user with common computer knowledge can set up a firewall, adjust limited settings and have it work. To ensure that your firewall is configured for optimum security and protected, however, test your hardware firewall security,
you can search the Internet for a free online-based firewall testing service. Firewall testing is an important part of protection to ensure your system is always configured for ideal protection.
To know more about the hardware firewall you can watch this video