![]() ![]() Firewall and NAT RouterĪ firewall functions like a router except that it blocks traffic from the external network according to user configured rules.Ī firewall protects your home/small business network computers and devices from intruders on the Internet. Used to filter out DSL signals from telephone signals so that you can access the internet and use the telephone simultaneously. It is usually built into the Internet/broadband router and not normally purchased as a separate component. This converts digital signals into analogue signals that are suitable for sending over a telephone line. The diagram below shows a typical home or small office network layout. Internet Connection Components and Functions The technologies, components and services used in small home networks are the same (function wise) as those used in large corporate networks. In this tutorial we look at the various components that you need to create a computer network and connect it to the Internet. An Internet connected home/home office network, consists of a variety of hardware and software components.
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