Internet of everything
Internet of everything

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Internet of everything

3.2.16 Packet tracer – home IoE implementation

Watch a demonstration of the Packet Tracer – Home IoE Implementation activity.

Download this video clip.Video player: ioe_1_video_3_2_16_packet_tracer_home_ioe_implementation.mp4
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Transcript

INSTRUCTOR
This packet tracer activity is an incredible example of IOE, the internet of everything, and how it is implemented in the home. The first thing that I'm going to do is I'm going to close the toolbars to make more room for the main workspace. I'll close the main toolbar, the right toolbar, and the bottom toolbar. And now we can see the workspace a little better. The main idea behind this packet tracer file is to give us an example of the different ways that the internet of everything is entering the home environment.
So in this file, we have a scenario in which Bob has implemented IOE solutions in his home. And he's now able to monitor and receive in real time information on his home environment. And he can react to environmental changes and get real time information on the things that are occurring inside of his home. This allows him to manage his environment better, have more security, and peace of mind.
So in this file, we have three clusters. We have the home over here, which we can click to go inside. We have our ISP connection. As you can see, the home is connected to the internet service provider. And then across this link here, we have a representation of the internet. This is where we find Bob. If we click on this internet cluster, we find Bob on his smartphone located in India. And from India, he's able to monitor the things happening in his home and react to them in real time. Let's examine Bob's smartphone.
We can follow the instructions. But before I do that, I'm going to click on Fast Forward Time, which will fast forward all of the connections and all of the devices existing and make sure that the links are all active and IP addressing has been resolved. I'll click on PDA 1, go to Desktop, Web Browser, and type in www.home.net, and press Go.
You can see that I'm met with a web page from Bob's internet service provider. And I can click on the link to Your Home Security and look at the master control page for Bob's home. I can see that Bob has sensors that are active in the master bedroom, the great room, bedroom number two, and the garage.
I can click on the diagram of Bob's home and monitor the various sensors that are working in his house. We have a lights monitor. You can see that the light are on. We have appliances-- coffeemaker, icemaker, TV, a water monitor. And you can see that the water philtre probably needs changing. We've got security cameras with three different zones, motion detectors in the garage, inside the house, and outside of the house, and smoke alarms in three different zones as well.
Now, these motion detectors that you see here through the web browser that Bob's accessing are actually just static images. And they're not responding in real time to changes occurring in the home. To get a sense of how IOE technology functions in the home, we need to go and explore Bob's home directly. So I'll close the web browser and Bob's smartphone and press the Back button and go into Bob's home.
Now, within Bob's home, we can see how Bob is taking advantage of the concept of the internet of everything, and everything being online and accessible, and how information and access to information is completely different today. We can see how the cable connection comes in from outside, hits a coaxial splitter which goes to the TV and also to a cable modem. The cable modem in turn is connected to his gateway. And we can see his router gateway device here. This is his home gateway. From his home gateway, we have connections to a controller with wire connections throughout the house as well as wireless connections to devices all over the house directly from home gateway.
Let's take a look at some of the smart sensors that Bob has implemented in his home. We can see that many of the common home devices and appliances are now internet-enabled. For instance, the smoke detector in the bedroom has received an IP address through DHCP. The thermostat is now an internet-enabled device. We have a light sensor, heater, coffee pot. The coffee pot has received an IP address as well. We have a garage smoke detector, internet-enabled.
Let's manually create some change in the environment and then see how the sensors and devices in the home respond to the change. When you open this particular packet tracer file, a second window opens as well. This is the environment window. With this pop up window, you can create change in the environment and see how the sensors in the home respond. For instance, I'll open up the thermostat again, click on Temperature.
And you can see the home temperature right now is 72 degrees Fahrenheit. But if I open the environment window and increase the north wind, you can see that the temperature has gone down to 67. And this in turn starts the furnace, which raises the temperature back up again. I'll increase the north wind again. The temperature begins to go down. The furnace comes on. And the temperature goes back up.
I'll close the thermostat, scroll up, and open the wind and water sensor, as well as the sprinkler actuator. I can increase the north wind again. Raising the wind speed, watch the water level go down. And since these are smart sensors, when the water level gets low enough, it will kick on the sprinkler actuator and start watering the grass. We can decrease the north wind, turn on the rain. Let's pretend the environment starts raining. Watch the water level rise. And when the water level gets high enough, it should activate the sprinkler, telling it to stop.
I'll stop the rain by pressing the Sunshine button in the environment window, and then close the sprinkler actuator, the wind and water sensor, and then scroll down to the garage area. In the garage, we can see a light actuator. I'll select it. You can see that it's wirelessly connected to the router gateway. There is the light actuator. The light is remotely controlled by the motion sensor.
Let's open up the environment window again and create some movement in the garage. You can see that as soon as I press the garage movement, the motion sensor detects the movement in the garage, which then in turn activates the light. I'll close this window. Let's open a smoke detector. I'll open the garage smoke detector. You can see here we have a carbon monoxide alarm. Bring back the environment window. And let's pretend that a fire occurs in the garage. By clicking on the button, fire occurs in the garage.
We can see almost instantly the carbon monoxide alarm level rising. And eventually, when it gets high enough, you can see the colour change from green to yellow. Carbon monoxide is going up. And eventually, it will get to a level which will signal a warning which Bob could then receive remotely on his smartphone. I'll stop the fire in the garage and close the garage smoke detector.
Let's help Bob configure his home gateway router. I'll click on the Home Gateway Router, go to the GUI interface. And you can see that this home gateway is a Linksys wireless router. It looks as if Bob that's just accepted the default settings. Let's see if we can help him configure it. I'll open the window a little bit more. I'll change the routers default IP address on the LAN for 192.168.0.1 to 10.10.10.1. To have the setting take effect, I'll scroll to the bottom and press Save Settings.
Now you can see that the IP address has taken. And the DHCP server is now handing out addresses from 10.10.10.100, handing out 50 user addresses for a range of 100 to 149. Let's go ahead and change some of the wireless settings. I'll click on Wireless. We can see that the network mode is mixed and the network name, or SSID, is set to the default, which is the word "default." I will change that to MyHomeWLAN in all caps. So now that I've set the SSID, I'll press Save Settings.
Let's go to Wireless Security and set up some wireless security. I'll change the security mode from disabled to WPA2 personal and use a passphrase of HomeWLAN. I'll scroll to the bottom and press Save Settings. Let's change that router access password from the default. I'll scroll up to the top, go to Administration. And you can see we have the router access password here. I'll change it to myhomeonly. And once again, myhomeonly. Scroll to the bottom and press Save Settings.
Now, I'll minimise the home gateway router window, scroll up, and see if the new IP address settings have taken effect on the network. I'll check the thermostat. Go to IP Configuration. And you can see the thermostat still has a 192.168.0 address. It's 192.168.0.100. It hasn't yet picked up a 10 address from the DHCP server. To solve this problem, I could go to Static and then go back to DHCP. And you can see that it's requested a new IP address. And now it's picked up a 10 address.
Now this would take some time to go to all these network devices and to do that manually. So what I can do is power cycle devices by clicking this button. This will restart all of the devices. You can see I get a warning that if the configurations enough it saved to the startup configuration, like on the router or on the switches, then the configurations will be lost. I'll press Yes. And all the devices are being power cycled as you can see.
I'll speed up the process by pressing Fast Forward Time. And you can see that the thermostat still has a 10 address. So that's good. I can check the smoke detector also. And it has also picked up a 10 address. So now my home network has a new IP addressing scheme. And the home gateway router has security settings configured.
Let's practise manually configuring a network sensor in the home. I'll scroll up. And you can see in bedroom one, the smoke detector, if I go to IP Configuration, does not have an IP address. And it's set to static configuration. Now, I could just press DHCP and it should pick up an IP address. But lets configure it manually. I'll go in and key in the address-- 10.10.10.50. Put in a subnet mask of 255.255.255.0. Change the default gateway to 10.10.10.1. And now the smoke detector has a correct IP addressing for the network. I'll close the window.
Now, there's one other thing that I need to do. Since I activated wireless security on my wireless home gateway router, my wireless devices, such as the wind and water sensor here, the sprinkler actuator, and if I scroll down, my light actuator in the garage, all of these devices had wireless connections. And they are now no longer associated with the wireless access point. That's because I turned on WPA2 security settings. And I haven't reconfigured these devices to use those security settings. So what I need to do is go in and configure each of these devices with the wireless security.
So I'll open the Wind and Water, go to the Config tab, click on Wireless. I'll drag open the window. And I'll put in the SSID MyHomeWLAN. I'll go down here and turn on WPA2 PSK and put in the passphrase HomeWLAN. And then scroll down, and I'll toggle between Static and DHCP. And you can see that I've picked up an IP address. I'll close the window. And you can see that the wind and water sensor has now a wireless association with the home gateway router.
Now I need to do this to each of my devices that wirelessly connect to the network. So I'll click on the Sprinkler Actuator, and click on Wireless, and do the same thing. Put in the SSID, WP2 with the passphrase. Toggle between Static and DHCP Client. And I've picked up an IP address. And now this has been associated. And then I'll scroll down and do the same thing in the garage.
And now we have associated here. There is also a home tablet that will need to wirelessly connect. And we'll see if there are any other devices here that need to. The heater, coffee maker, and some of the other devices as well also need to connect wirelessly to the network. Once I've done that, the network will be completely connected.
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Interactive feature not available in single page view (see it in standard view).

The video demonstration is the primary source for how to navigate the activity. However, after viewing the video, you can use the following files to investigate the activity on your own.

Essential note: If you are new to Packet Tracer, you can watch a tutorial. You must install Packet Tracer before you can open .pkz files. To install Packet Tracer, return to the course progress page where a copy is available to download and install .

Packet Tracer is available for both Microsoft Windows and Linux systems. The Open University Cisco Academy team support a moderated Facebook Community helping Mac users port this application onto all versions of the Apple Mac OSX. For more information, you will need to join the community.

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