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Our today's topic is networking networking devices, a network consist of two or more computers that

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are linked in order to share resources and to exchange funds the networking devices.

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Our first one is Lenn.

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That is a local area, network secondees, modem or Wi-Fi router, today's switch or server.

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And the last is Bluetooth.

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But in this session, I'm going to teach you about Wi-Fi.

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Routers of Wi-Fi, rather, is a device that performs the function of a router and also includes the

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function of a wireless access point.

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It is used to provide access to the Internet or a private computer network.

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And these are mainly of three types.

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First one is via, the second is wireless and third one is hybrid.

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Now let's see the difference between wired and wireless router from installation point of view of wired

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connection is rather simple to set up.

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All you need is a connecting cable from your computer to your outer and wireless network.

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Take a bit more work to setup and you will need to place the router in a location where your computer

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will receive a clear signal.

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And from a security point of view, wireless network do pose some security risk because they are usually

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being broadcast in public places.

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Wireless signal encryption offers some protection, but wireless is still not secure as Ethernet and

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other wire connections.

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Here are some tips to secure your Wi-Fi after your first step is to change the society so that it is

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difficult for attackers to guess about manufacturer to name and model number of rather used.

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Our second tip is activate encryption, use the latest encryption that is Wi-Fi protected access to.

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Our next step is activist, one for both private and public networks, then turn off guest networks.

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Our next step is turn off Wi-Fi protected setup, then disable the ECB and use a static IP range instead.

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Our next step is done on Mac address filtering and our last step is change the default password and

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use a strong password instead.

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Strong password means a combination of small and capital letters, along with numbers and special characters,

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as you can see in this example.

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OK, now let's talk a bit about IP addresses.

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So what is IP address?

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IP address is a unique identity of a computer system in a network.

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There are two types of IP addresses or we can see it.

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There are two versions of IP addresses, IP words, and for an IP, more than six IP, more than four

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is a 32 bit network address and IP more than six is a 128 bit address.

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And there are two types of IP addresses.

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First, one is public and second is private.

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Public IP address is the one which is provided by your Internet service provider to your modem and private

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IP address is the one which is provided by your modem to the PC.

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OK, let's not deep dive in IP addresses.

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So that's it for this doctorial.