Guided Practice - Connecting to the Internet (Physical) (1).docx packet tracer

Guided Practice - Connecting to the Internet (Physical)

In this guided practice, you will be wiring and programming a router and two switches using physical equipment or PacketTracer. You will be programming your LAN interface connections using VLANs and connecting your second-gigabit interface to the “Internet.” You will also connect your PC to each VLAN to show that your networks are programmed correctly.

If you are using physical equipment, skip to Task 1; otherwise, do the following setup steps.

At the top of the screen, there are two icons. Click on the left icon (create a new rack) and the right one (create a new table).

Scroll down until you see the rack on the left and the table on the right. Go to the routers and click and drag a 4321 router onto the rack. Then click on the switches and drag 2 2960 switches onto your rack and place it directly below the Router.

Either way is fine. Just make sure to keep your cables correct and know which of the switches is your first switch and which is the second.

Next, go to the PC and drag a PC over to your table. A yellow block will appear when your PC is in the proper place. Let go, and your PC will snap onto the table.

Your finished setup should look like the screen below. You are now ready to continue to Task 1.

Task 1 – Wiring your network

Your network should have a router, two switches, and a PC, which we will wire into a network. We will also connect the PC to the console port of the Router and switch and program the Router for your new networks.

First, we will connect a straight-through Ethernet cable from the router port G0/0/0 to the switch Ethernet port on the right of switch 1, then attach a straight-through from the first switch to the second switch going from the second-gigabit port on switch 1 to one of the gigabit ports on switch 2.

The Router has three ports in the middle of the system, labeled G0/0/0 and G0/0/1. These are the two programmable gigabit Ethernet ports that you will be using to build your network. The third port, on the right, is for fiber optics and requires a plug-in module to work. Plug your Ethernet cable into the bottom port labeled G0/0/0.

On your switch, there are 24 or 48 fast Ethernet ports and two or four gigabit Ethernet ports on the right-hand side. We’re going to plug the other end of our Ethernet cables into the First Gigabit port on the right side labeled 1 (or 3 if there are 4 ports) and then plug a cable from gigabit port 2 (or 4 if there are 4 ports) into the second switch’s gigabit port 1 (or 3 if there are 4 ports).

Now you are going to wire from your console port on your Router to the serial port (RS232) port on your PC. If your PC doesn’t have a serial port, skip to the USB directions below. The USB and serial connections will work the same way, but the connection is different from the PC.

Locate the serial port on your PC. Plug the cable that looks like the one on the right into the serial port.

If you are using a USB console cable, connect the USB cable to a USB port on your computer. It doesn’t matter which you use, but you’ll need to make sure that your PC recognizes the cable when it is plugged in (we’ll see how to do this below).

Next, you will connect the Ethernet side of the console cable to the console port on your Router.

Now you will connect your first switch to the PC using another Ethernet cable. Connect one side of the cable to a Fast Ethernet port on the switch and then the other side to the Ethernet port on the PC. You should see the light on your switch light up yellow and then turn green. This is because the switch is “learning” about your PC that has been plugged in.

Now you will add a wireless router to the second switch and attach it to port 24. If you are using Packet tracer drag an WRT300Nrouter on top of the PC.

Connect the wireless Router from port 24 on the switch to the Internet connection on the wireless Router.

You should now have the following network wired up and ready to be programmed.

If you are working on physical equipment, get an okay from your classroom teacher. If you are working with Packet Tracer take a screenshot of your physical network screen.

Deliverables for Task 1

· Screenshot of your wired network or an okay from your classroom instructor.

Task 2 – Programming your network

First, we need to connect to the Router. You will use the console cable you connected from your Router to the PC to program the Router. If you are using Packet Tracer open the PC, go to Desktop, and click on terminal. Click on the OK button.

If you are using physical equipment, open a command prompt and type the command mode. This will show you the serial ports attached to your system. Note the serial port number and type putty to open the terminal program. Click on the Serial button on putty and then change the serial line to your com port from the computer. Click on the Open button and press the enter key a couple of time to start talking to the Router.

You should now see information coming to you from the Router. If you see the following screen, it means your Router has not yet been programmed. Simply type no and press the enter key.

The Router will now drop you out to a user mode command prompt which is indicated by a > after the name of the Router. If there is no programming on your system, it will show up as Router> otherwise, it will show up with the name of the Router and a > character.

Type the command enable at the prompt to drop into privileged mode so you can program the Router. This mode is indicated by a # symbol after the router name.

You are now going to program the router name so it will reflect your student number and R1. From your command prompt, type configure terminal, which will drop you into configuration mode.

Now change the name of your Router by typing hostname <studentID>-R1, which will change the name on your system. Type the command exit to switch back out of configuration mode back to privileged mode. Type an enter key to bring up the privileged mode prompt.

Notice that now your system name has been changed to the new router name you typed in.

Now you are going to program both the G0/0/0 and G0/0/1 ports on your Router. First, take a look at the table below. This is a standard network connection grid, and you will use these for all your network programming. You will be 5 networks on the G0/0/0 port and one network, to connect to the Internet, on G0/0/1.

Any time you see a ___ replace it on the table with your student number. Anywhere you see a ###, you will need to replace it with the correct numbers for your networks.

System	Port	Connect To	IP address	Subnet Mask
<studentID>-R1	G0/0/0.10	Sw1	192.168.__50_.1	255.255.255.224
	G0/0/0.20	Sw1	192.168.__50_.33	255.255.255.224
	G0/0/0.30	Sw1	192.168._50__.65	255.255.255.224
	G0/0/0.40	Sw1	192.168._50__.97	255.255.255.224
	G0/0/0.50	Sw1	192.168._50__.129	255.255.255.224
	G0/0/1	Internet	11.0.0.__50_	255.255.255.0

You can see we are going to be using a /27 networks on your G0/0/0 subnets so you’ll need to calculate the subnet mask and starting IP addresses for each interface.

Now you will go into your terminal and program the G0/0/0 interface.

Type the following commands:

interface g0/0/0

no shutdown

interface g0/0/0.10

encapsulation dot1q 10

ip address 192.168.___.1 255.255.255.###

Program all of the other sub-interfaces on the G0/0/0 port.

Now go to your g0/0/1 port. We are going to program the G0/0/1 port to connect to the Internet. The IP address given to you by your ISP is 11.0.0.___/24.

interface g0/0/1

ip address 11.0.0.___ 255.255.255.0

no shutdown

Go back to your main screen by typing the end command. You may need to hit the enter command again to get a new router prompt.

Type to command show run to see your configuration.

When you get the –More—prompt, press the space bar to get the next page, or an enter key to get the next line.

Go down until you see your interfaces that have been programmed.

Take a screenshot of your show run screen showing your programmed interfaces.

Deliverables for Task 2

· Screenshot of your programmed interfaces.

Task 3 – Programming your switches

For your sub-interfaces to work correctly, they must match the VLANs programmed into your switch. Go to switch 1 and connect to the console port on the back of the switch. If you are using Packet Tracer, right-click on the switch and select inspect rear. Click on your console cable, currently in the Router, and attach to the console port on the back of the switch.

Open your terminal and click a couple of time to see the switch prompt below. You may have to press the Enter key a couple of times for the switch to respond.

Enter the switch by typing enable and then go to configure terminal and type the new hostname for the switch <studentID>-Sw1.

Now you are going to allocate the switch ports to the VLANs. First let’s assign ports 1-11 to VLAN 10 and ports 12-24 to VLAN 20. Type the following commands:

interface range f0/1-11

switchport mode access

switchport access vlan 10

interface range f0/11-24

switchport mode access

switchport access vlan 20

Program your two gigabit port as trunk ports

interface range g0/1-2

switchport mode trunk

Change your console cable over to the second switch and type the new hostname for the switch <studentID>-Sw2.

Change the switch ports to the VLANs 30 and 40. First let’s assign ports 1-11 to VLAN 10 and ports 12-24 to VLAN 20. Type the following commands:

interface range f0/1-11

switchport mode access

switchport access vlan 30

interface range f0/11-23

switchport mode access

switchport access vlan 40

interface range f0/24

switchport mode access

switchport access vlan 50

Finally, you need to program the gigabit ports on your switch to be trunk ports.

interface range g0/1-2 (or g0/1-4 if you have 4 ports)

switchport mode trunk

Your switch should now be programmed to work with VLANs. Go back to your privileged mode prompt and type show run to see all of the ports on the switch. Take a screenshot showing the last ports with VLAN 10, VLAN 20, and the trunk ports showing.

One odd thing you will need to do before we are done is tell your first switch about the other 3 VLANs on the network. If you don’t do this, it won’t know to pass along the information to the second switch and will just trash anything for VLANs 30, 40 and 50. Type the following commands into the first switch.

vlan 30

name VLAN30

vlan 40

name VLAN40

vlan 50

name VLAN50

You can verify your VLAN by going typing end and then typing the command

show vlan brief

Take a screenshot of the show vlan brief from both Sw1 and Sw2.

Deliverables for Task 3

· Screenshots of your show vlans brief command on both switches showing VLANs and port assignments.

Task 4 – Adding DHCP to your Router

Now you are going to add DHCP to your Router so your PC can pick up and use an IP address from your network. Programming the Router will be the same regardless of if you are using physical equipment or Packet Tracer but the PC interface will be slightly different.

First, let’s program DHCP into the Router. This is done by creating a pool of addresses the Router will use on the network. Because you have five networks, you will be creating five pools of addresses on your Router. If you only have a single router in your network, this can work very well, but, as we’ll see later on, multiple routers can be challenging using this method.

Open your router terminal screen (either terminal or putty) and make sure you are at the privileged prompt before we start.

Go into the configure terminal

Type the following commands

ip dhcp pool mypool

network 192.168.__.0 255.255.255.224

default-router 192.168.___.1

dns-server 11.1.1.10

ip dhcp pool mypool2

network 192.168.___.32 255.255.255.224

default-router 192.168.___.33

dns-server 11.1.1.10

ip dhcp pool mypool3

network 192.168.___.64 255.255.255.224

default-router 192.168.___.65

dns-server 11.1.1.10

ip dhcp pool mypool4

network 192.168.___.96 255.255.255.224

default-router 192.168.___.97

dns-server 11.1.1.10

ip dhcp pool mypool5

network 192.168.___.128 255.255.255.224

default-router 192.168.___.129

dns-server 11.1.1.10

Go back to your PC and attempt to pull a DHCP address to your PC. If you are using packet tracer, go to your desktop, config tab, and switch from Static to DHCP. If you are using physical equipment, pull up a command prompt and type ipconfig. If your IP address is incorrect you will need to type ipconfig /renew. If that still doesn’t work type ipconfig /release and ipconfig /renew. Take a screenshot of your PC with the new IP address.

Move your cable from the first port of the first switch to the 12th port in the first switch and pull a new IP address using the same process as above. Take a second screenshot of your PC connected to the second switch with the new IP address.

Finally, move your ethernet cable from your PC to your wireless router's Ethernet connection and pull a new IP address.

Open your web browser and type in the gateway address into the URL line. Type in the username admin and password admin.

You will now be in the GUI interface of your wireless Router. Find the status tab and verify that your Router now has an IP address from your Router. Take a screenshot.

Deliverables for Task 4

· Screenshots of your PC plugged into switch 1 and switch 2 with different IP addresses and the IP address on your wireless Router.

Task 5 – Connecting to the Internet

In this exercise, you will connect your Router to the “Internet” using the G0/0/1 port. If you already have an Internet connection, you can skip the setup below and go directly to the connecting to the internet section of this task.

Setting up the Internet

To set up the Internet connection, you will need a second router that is programmed to talk with your Router over the internet connection. Pull a second router into your rack and label it Internet.

Pull a second PC to your table and label it Internet PC and connect from the G0/0/1 port of the Internet router to the PCs Ethernet port. Connect from the G0/0/0 port to the G0/0/1 port of your R1 router.

Connect from your console cable port to the Internet router and program it as shown below.

configure terminal

hostname Internet

interface g0/0/0

ip address 11.0.0.1 255.255.255.0

no shutdown

interface g0/0/1

ip address 11.1.1.1 255.255.255.0

no shutdown

ip route 192.168.___.0 255.255.255.0 11.0.0.___

Program a DHCP pool into your Internet router and pull an IP address to your Internet PC.

ip dhcp pool mypool

network 11.1.1.0 255.255.255.0

default-router 11.1.1.1

dns-server 11.1.1.10

Connecting to the Internet

Connecting to the Internet is a straightforward process of connecting your Ethernet cable and programming a static route to the Internet router. You will use a default static route that will direct all non-local traffic to the Internet router through the g0/0/1 port.

configure terminal

ip route 0.0.0.0 0.0.0.0 g0/0/1

Go to your PC and ping from your computer to the Internet. It’s ok if you receive a time out or two before a successful reply. Be sure to use the IP address from you Internet PC. Take a screenshot.

Deliverables for Task 5

· Screenshot a ping from your network PC to the Internet PC.