Table of Contents
1.0. Introduction
1.0.1 Why should I take this module?
Welcome to Networking Today!
Congratulations! This module starts you on your path to a successful career in Information Technology by giving you a foundational understanding of the creation, operation, and maintenance of networks. As a bonus, you get to dive into networking simulations using Packet Tracer. We promise you will really enjoy it!
1.0.2 What will I learn to do in this module? Module Title: Networking Today
Module Title: Networking Today
Module Objective: Explain the advances in modern network technologies.
| Topic Title | Topic Objective |
|---|---|
| Networks Affect our Lives | Explain how networks affect our daily lives. |
| Network Components | Explain how host and network devices are used. |
| Network Representations and Topologies | Explain network representations and how they are used in network topologies. |
| Common Types of Networks | Compare the characteristics of common types of networks. |
| Internet Connections | Explain how LANs and WANs interconnect to the internet. |
| Reliable Networks | Describe the four basic requirements of a reliable network. |
| Network Trends | Explain how trends such as BYOD, online collaboration, video, and cloud computing are changing the way we interact. |
| Network Security | Identify some basic security threats and solution for all networks. |
| The IT Professional | Explain employment opportunities in the networking field. |
1.0.3 Download and Install Packet Tracer
To obtain and install your copy of Cisco Packet Tracer, please follow the instructions from the link below:
1.0.4 Video - Getting Started in Cisco Packet
Tracer
Packet Tracer is a tool that allows you to simulate real networks. It provides three main menus:
- You can add devices and connect them via cables or wireless.
- You can select, delete, inspect, label, and group components within your network.
- You can manage your network by opening an existing/sample network, saving your current network, and modifying your user profile or preferences.
If you have used any program such as a word processor or spreadsheet, you are already familiar with the File menu commands located in the top menu bar.
The Open, Save, Save As, and Exit commands work as they would for any program, but there are two commands that are special to Packet Tracer.
The Open Samples command will display a directory of prebuilt examples of features and configurations of various network and Internet of Things devices included within Packet Tracer.
The Exit and Logout command will remove the registration information for this copy of Packet Tracer and require the next user of this copy of Packet Tracer to do the login procedure again.
Click Play in the video to learn how to use the menus and how to create your first Packet Tracer network.
Transcript:
00:00.930 --> 00:01.910 - [Instructor] Hello everyone. 00:01.915 --> 00:04.930 Welcome to our Getting Started in Cisco Packet Tracer 00:04.930 --> 00:06.000 Walkthrough video. 00:06.005 --> 00:09.390 In this video, I get to show you the different features 00:09.390 --> 00:12.830 built inside of the program known as Cisco Packet Tracer. 00:12.830 --> 00:14.550 As we get started, we'll highlight some of 00:14.550 --> 00:16.650 the key components of using 00:16.650 --> 00:19.180 the Cisco Packet Tracer application. 00:19.180 --> 00:21.380 Let's begin by taking a look at the bottom toolbar 00:21.380 --> 00:24.010 and I'm looking at the bottom left corner. 00:24.010 --> 00:26.540 Here, we have a variety of different categories 00:26.540 --> 00:29.820 and in each category we're going to have options below. 00:29.820 --> 00:32.820 For example, the default category is Network Devices. 00:32.820 --> 00:34.930 That's selected by default. 00:34.930 --> 00:37.560 In the Network Device category, we'll find the sub category 00:37.560 --> 00:38.970 of Routers. 00:38.970 --> 00:41.900 With Routers selected, we'll see a variety of different 00:41.900 --> 00:45.493 model routers available for us to put into our topology. 00:46.360 --> 00:49.460 If I click on the next item it's Switches 00:49.460 --> 00:51.910 inside of our Network Device category. 00:51.910 --> 00:55.040 And then my list will now contain network switches 00:55.040 --> 00:57.733 that I can deploy inside of my topology above. 00:58.850 --> 01:01.660 The next category is Hubs followed of course 01:01.660 --> 01:06.070 by Wireless Devices, including then the next category 01:06.070 --> 01:07.180 of Security 01:08.130 --> 01:11.810 and then finally is WAN Emulation 01:11.810 --> 01:13.483 for our wide area networks. 01:14.670 --> 01:17.296 Outside of the Network Device category, we can find the next 01:17.296 --> 01:20.200 main category of End Devices. 01:20.200 --> 01:23.870 If I click on End Devices, our default subcategory 01:23.870 --> 01:27.550 is in end devices of different types of hosts 01:27.550 --> 01:29.903 and other equipment we can put on our network. 01:31.070 --> 01:35.340 There's another sub category for End Devices, which is Home. 01:35.340 --> 01:38.703 And this brings in a lot of our smart network enabled 01:38.703 --> 01:40.593 IOT devices. 01:41.750 --> 01:44.760 We can go further by looking at citywide devices, which are 01:44.760 --> 01:48.713 under the category of Smart City within End Devices. 01:49.940 --> 01:53.700 If we continue on the next component will be Industrial 01:53.700 --> 01:56.070 and then even Power Grid. 01:56.070 --> 01:59.940 All bringing some great features into Cisco Packet Tracer 01:59.940 --> 02:02.490 and the type of devices we can deploy in a network. 02:03.450 --> 02:05.960 To go even a further into the realm of internet of things 02:05.960 --> 02:09.060 known as IOT, we have another main category known as 02:09.060 --> 02:13.040 Components and in Components you'll find a variety 02:13.040 --> 02:14.830 of different boards. 02:14.830 --> 02:18.000 Also, we have another subcategory for Actuators 02:18.005 --> 02:20.530 and even Sensors. 02:20.530 --> 02:23.210 These can be deployed in a network just like 02:23.210 --> 02:24.393 what we're doing now. 02:25.750 --> 02:28.940 To interconnect your devices, we'll be utilizing 02:28.940 --> 02:31.220 the Connections category. 02:31.220 --> 02:34.310 In the Connections category, we have two sub categories. 02:34.310 --> 02:37.310 We have Connections, which is a common type of cabling 02:37.310 --> 02:40.550 we'll be using but also another sub category 02:40.550 --> 02:42.250 is Structured Cabling. 02:42.250 --> 02:44.310 And here you will find items that are available 02:44.310 --> 02:47.340 in Physical View of Cisco Packet Tracer. 02:47.340 --> 02:49.970 And these will include patch panel connectors 02:49.970 --> 02:51.730 and wall mounts. 02:51.730 --> 02:54.920 The next category is Miscellaneous and here we will find 02:54.920 --> 02:59.493 some custom made devices with components already installed. 03:00.670 --> 03:03.450 Lastly, the category of Multiuser Connection 03:03.450 --> 03:06.160 allows us to interconnect our Packet Tracer instance 03:06.160 --> 03:08.640 with others across our local area network 03:08.640 --> 03:11.233 or even a wide area network connection. 03:12.840 --> 03:15.336 Let's continue by creating a small network 03:15.336 --> 03:19.083 utilizing our Cisco Packet Tracer Logical View. 03:20.230 --> 03:22.570 By default, we can see our Packet Tracer here has opened 03:22.570 --> 03:24.190 in the logical view mode. 03:24.190 --> 03:27.330 This is where we can build a logical topology. 03:27.330 --> 03:29.330 I'm going to select the main category 03:29.330 --> 03:32.370 in the bottom toolbar of Network Devices. 03:32.370 --> 03:34.960 The default selection again is Routers. 03:34.960 --> 03:37.910 And I'll go ahead and take a look at the routers available. 03:38.870 --> 03:41.140 At this time, I may want something like 03:41.140 --> 03:44.020 a 4331 Cisco router. 03:44.020 --> 03:46.320 I can click on that and then I can click in 03:46.320 --> 03:47.603 our logical topology. 03:48.870 --> 03:52.850 I can continue by deploying now a network switch. 03:52.850 --> 03:55.640 I will click on the sub category for Switches 03:55.640 --> 03:58.600 then I'll click the first switch available. 03:58.600 --> 04:00.800 I will then click on my logical topology 04:01.810 --> 04:03.243 and now it is ready. 04:04.320 --> 04:08.220 At this time, I'd like to add on two or three end devices. 04:08.220 --> 04:10.803 So I'll click on the category of End Devices. 04:12.670 --> 04:15.350 The default sub category of our End Devices 04:15.350 --> 04:17.020 is already selected. 04:17.020 --> 04:20.830 And I will go ahead and take one PC and click it on, 04:20.830 --> 04:24.400 put it right into the logical topology and one laptop. 04:24.400 --> 04:27.393 I will click and then click on the logical topology. 04:28.620 --> 04:31.580 At this time, I'd like to interconnect these by utilizing 04:31.580 --> 04:32.960 our cabling. 04:32.960 --> 04:36.243 That is under our Connections category. 04:37.230 --> 04:38.970 I will click on Connections. 04:38.970 --> 04:42.850 The default sub category of Connections is already selected 04:42.850 --> 04:46.071 and I will choose the appropriate cabling to interconnect 04:46.071 --> 04:49.563 these devices with a router and switch. 04:50.840 --> 04:52.430 I will use my straight-through cable 04:52.430 --> 04:54.240 which is the third option available. 04:54.240 --> 04:57.780 I will select it, click on my PC, 04:57.780 --> 05:01.280 choose the corresponding port of Fast Ethernet 05:01.280 --> 05:03.623 and connect that to the switch. 05:04.650 --> 05:06.560 I'm going to choose any available interface 05:06.560 --> 05:07.810 for network connectivity. 05:09.530 --> 05:14.530 I will repeat this by connecting the cable from the laptop 05:14.600 --> 05:15.510 Fast Ethernet 05:17.260 --> 05:20.623 to the switch on another available network interface. 05:22.180 --> 05:25.200 Lastly, I'll interconnect that switch to the router 05:25.200 --> 05:27.220 in our logical topology. 05:27.220 --> 05:30.479 I will grab the appropriate cable by clicking on it, 05:30.479 --> 05:33.230 click on an available port on the switch 05:34.340 --> 05:36.408 and then connect it to the router 05:36.408 --> 05:39.093 on available network connection. 05:41.040 --> 05:43.690 You will see indicator lights being shown here 05:43.690 --> 05:46.043 due to a port status and connectivity. 05:47.570 --> 05:51.680 At this time, we have a small logical topology built. 05:51.680 --> 05:54.510 We will take a look at the physical topology 05:54.510 --> 05:56.760 of how we will be able to build a network 05:56.760 --> 05:59.763 and interconnect them in the Physical View. 06:00.620 --> 06:04.453 I will click on the Physical tab and you'll see a change. 06:05.550 --> 06:08.200 The change is our screen is a little bit taller. 06:08.200 --> 06:11.060 The bottom toolbar might be in the way. 06:11.060 --> 06:14.480 We will have our ability to scroll on the right side 06:14.480 --> 06:16.483 of our screen by the sliding tab. 06:17.970 --> 06:21.290 We can see that there's the PC that I have clicked 06:21.290 --> 06:23.970 and put in the logical topology along with a cable 06:23.970 --> 06:24.853 coming off of it. 06:25.690 --> 06:28.010 Also, we can see the laptop has been positioned 06:28.010 --> 06:29.650 on top of the PC. 06:29.650 --> 06:32.880 I can click and drag it and put it on the table 06:32.880 --> 06:34.053 next to the PC. 06:35.420 --> 06:37.140 If I scroll up, you'll see those cables 06:37.140 --> 06:40.540 from the PC and the laptop connecting to the switch. 06:40.540 --> 06:44.070 I can click and drag the switch and I can lower it 06:44.070 --> 06:45.833 on our network rack. 06:46.940 --> 06:49.240 That switch is connected to the router. 06:49.240 --> 06:52.640 I can click and lower the router on the network rack 06:52.640 --> 06:55.463 in order to organize these devices and cabling better. 06:57.080 --> 06:59.350 In the Physical View, I have the ability to use 06:59.350 --> 07:02.523 my main toolbar and I have settings for zoom. 07:03.390 --> 07:07.023 I will click the magnifier glass with a plus to zoom in. 07:09.720 --> 07:13.230 Now you have a better view of the physical router 07:13.230 --> 07:16.840 with the cable that connects to the physical switch. 07:16.840 --> 07:19.760 And then if I scroll down the physical switch 07:19.760 --> 07:23.323 with the two connections to the devices down below. 07:25.273 --> 07:28.210 If we want to manage our cabling, we'll right click 07:28.210 --> 07:30.040 on a network cable and we'll be presented 07:30.040 --> 07:31.730 with three options. 07:31.730 --> 07:34.870 We can delete the cable to remove it completely. 07:34.870 --> 07:38.180 We can color the cable a different color so we can identify 07:38.180 --> 07:41.330 the cable and thus identify any devices connected 07:41.330 --> 07:43.330 by that cable easier. 07:43.330 --> 07:46.310 Or we can select Manage Cable, which will take the cable 07:46.310 --> 07:49.120 and will put it away nicely, which provides us a nice 07:49.120 --> 07:50.970 and tidy workspace. 07:50.970 --> 07:53.730 In the real physical world that would allow us to organize 07:53.730 --> 07:56.090 our cabling, secure them appropriately 07:56.090 --> 07:59.053 and keep them from disconnecting or from being crimped. 07:59.980 --> 08:03.130 We cannot use Manage Cable at this time for any devices 08:03.130 --> 08:06.670 sitting on a table or on a shelf. 08:06.670 --> 08:10.440 We can only use this Manage Cable option when devices are 08:10.440 --> 08:12.853 on our network rack on the left side. 08:13.880 --> 08:16.990 At this time, I'll scroll up to the top and you can see 08:16.990 --> 08:19.540 that we have our switch and our router. 08:19.540 --> 08:20.967 I can right click on the switch 08:20.967 --> 08:23.573 and I can say Manage All Cables on Device. 08:24.560 --> 08:27.220 When I select that, you will see that the cabling 08:27.220 --> 08:30.200 between the switch and the router looks like it disappears. 08:30.200 --> 08:33.040 Instead of it just keeping our cables nice and tidy 08:33.040 --> 08:35.530 between the actual switch connection 08:35.530 --> 08:37.463 to the upstream router connection. 08:38.570 --> 08:40.790 If I right click on that switch again, you'll see 08:40.790 --> 08:44.290 we have the options to Inspect Front, Inspect Rear 08:44.290 --> 08:47.280 to Delete the Device or to Unmanage All Cables 08:47.280 --> 08:48.930 on the Device as well. 08:48.930 --> 08:51.490 By unmanaging all cables on the device, we see 08:51.490 --> 08:54.290 the interconnected cable between the router and the switch 08:54.290 --> 08:57.363 reappear, hanging down on the front of our network rack. 08:58.930 --> 09:01.700 If I right click on that switch and select Inspect Front 09:01.700 --> 09:04.163 we'll get a closer view of our network switch. 09:05.200 --> 09:08.510 Again, we have our magnifier glass options to zoom in. 09:08.510 --> 09:12.330 I will click on zoom in and then I will scroll to the right 09:12.330 --> 09:14.230 and down with my Packet Tracer window. 09:15.230 --> 09:18.240 We can see that I have port 10 on the switch connected 09:18.240 --> 09:19.400 to a device. 09:19.400 --> 09:22.660 If I hover over that connection, we'll see it's connected 09:22.660 --> 09:24.423 to device PC zero. 09:25.570 --> 09:28.970 We'll also see there's a link light on for port 20. 09:28.970 --> 09:31.020 If I hover over that connection, we'll see that this 09:31.020 --> 09:32.993 connection goes down to the laptop. 09:33.843 --> 09:37.110 And lastly, if I hover over the gigabit connection 09:37.110 --> 09:38.920 on the far right side of the switch 09:38.920 --> 09:42.000 we'll see that this connects to device router zero. 09:42.005 --> 09:44.960 This is great information for us to be able to document 09:44.960 --> 09:48.890 and visualize our interconnected physical network. 09:48.890 --> 09:51.050 But also if I close this off 09:51.050 --> 09:53.070 again, we can just follow those cables 09:53.070 --> 09:55.370 and see where the interconnect to the devices. 09:56.240 --> 09:57.550 If I right click on the switch, 09:57.550 --> 10:00.520 we can also select Inspect Rear. 10:00.520 --> 10:02.170 When we click Inspect Rear, 10:02.170 --> 10:05.113 we will get a rear view of the Cisco switch. 10:06.160 --> 10:09.080 Again, I'll use my magnifier glass and we will be able 10:09.080 --> 10:10.553 to click and zoom in. 10:11.840 --> 10:14.320 Here we will see the console connection for us to complete 10:14.320 --> 10:17.220 our initial configuration of the switch. 10:17.220 --> 10:19.110 Also, you'll notice that there's no power button 10:19.110 --> 10:21.500 on the Cisco switch because the Cisco switch is 10:21.500 --> 10:23.730 automatically powered on once it is connected 10:23.730 --> 10:25.190 with a power cable. 10:25.190 --> 10:28.110 To remove power, we would unplug the Cisco switch 10:28.110 --> 10:29.563 from any power source. 10:31.620 --> 10:33.020 If I scroll back to the left side 10:33.020 --> 10:34.910 we can do the same with router zero. 10:34.910 --> 10:37.450 We can right click and Inspect Front 10:37.450 --> 10:39.952 and we can zoom in and get a better view 10:39.952 --> 10:43.560 of the Cisco router and any connections as well as 10:43.560 --> 10:46.000 any available slots that we can install any 10:46.005 --> 10:48.823 new components or additional features on. 10:52.010 --> 10:53.610 I can right click on the router again 10:53.610 --> 10:55.610 and click on Inspect Rear. 10:55.610 --> 10:58.860 And again, I'll zoom in and here on the router 10:58.860 --> 11:01.250 we can see that we have an aux port. 11:01.250 --> 11:04.470 We have our console port as well as we have 11:04.470 --> 11:06.612 a management interface. 11:06.612 --> 11:09.130 On the right side, we'll see that we have a power button 11:09.130 --> 11:12.250 and the current status of the router is powered on. 11:12.250 --> 11:14.870 If I click the power button, the green light will turn off 11:14.870 --> 11:18.202 and the power is now disabled for the router. 11:18.202 --> 11:20.800 I click it on again and now the router is actually 11:20.800 --> 11:22.963 booting up since it has received power. 11:24.630 --> 11:27.380 I will click the X to close the rear view 11:27.380 --> 11:28.493 of the Cisco router. 11:30.020 --> 11:33.420 If we want to deploy new devices onto this current 11:33.420 --> 11:37.200 physical topology, we will use our bottom toolbar. 11:37.200 --> 11:41.560 I will select End Devices and in the End Device subcategory 11:41.560 --> 11:43.770 I would like to deploy a server. 11:43.770 --> 11:47.510 I can click on the server and I will click on 11:47.510 --> 11:49.111 the network rack. 11:49.111 --> 11:52.630 That server is now deployed on the network rack. 11:52.630 --> 11:55.900 We can see that it is powered on and that we have 11:55.900 --> 11:58.550 a network interface ready for connection. 11:58.550 --> 12:00.910 I will go ahead and click on Connections 12:00.910 --> 12:03.940 and I will click on a straight through cable. 12:03.940 --> 12:05.600 When I click on this straight through cable 12:05.600 --> 12:07.650 I will click on the network interface card 12:07.650 --> 12:10.370 for Fast Ethernet zero of the server. 12:10.370 --> 12:12.420 And then I will click on any port I would like 12:12.420 --> 12:13.800 to connect it to. 12:13.800 --> 12:16.510 If you want a closer view of what port I'm connecting it to, 12:16.510 --> 12:18.350 I can always right click on the switch 12:18.350 --> 12:22.623 and click Inspect Front and zoom in for a closer view. 12:24.570 --> 12:26.540 With the zoomed in front of the switch 12:26.540 --> 12:29.570 I can easily identify what port of the switch 12:29.570 --> 12:31.000 I would like to connect to. 12:31.005 --> 12:34.370 For example, I would like to connect to port 24 12:34.370 --> 12:39.040 which is FE 0/24 on this 2960 switch. 12:39.040 --> 12:42.731 When I click on that port, the cable is now connected. 12:42.731 --> 12:45.720 If you feel that the cable is getting lost you can always 12:45.720 --> 12:48.490 right click on that cable and change the color 12:48.490 --> 12:50.180 as we mentioned earlier 12:50.180 --> 12:53.580 I can make it red for example, and click Okay. 12:53.580 --> 12:55.690 And now it's much easier to find the connection 12:55.690 --> 12:58.490 from the server to that Cisco switch. 12:58.490 --> 13:00.941 This is the power of Cisco Packet Tracer utilizing 13:00.941 --> 13:04.040 the Logical and the Physical Views. 13:04.040 --> 13:07.020 Please practice and enjoy using Cisco Packet Tracer 13:07.020 --> 13:09.110 for all of your network configurations 13:09.110 --> 13:10.240 and for any scenarios that 13:10.240 --> 13:12.903 you could possibly imagine and build.
1.0.5 Packet Tracer - Logical and Physical Mode Exploration
The network model in this Packet Tracer Physical Mode (PTPM) activity incorporates many of the technologies that you can master in Cisco Networking Academy courses. It represents a simplified version of how a small to medium-sized business network might look.
Most of the devices in the Seward branch office and Warrenton data center are already deployed and configured. You have just been hired to review the devices and networks deployed. It is not important that you understand everything you see and do in this activity. Feel free to explore the network on your own. If you wish to proceed more systematically, follow the steps below. Answer the questions to the best of your ability.
1.1. Networks Affect our Lives
1.0.1 Why should I take this module?
Welcome to Networking Today!
Congratulations! This module starts you on your path to a successful career in Information Technology by giving you a foundational understanding of the creation, operation, and maintenance of networks. As a bonus, you get to dive into networking simulations using Packet Tracer. We promise you will really enjoy it!