ICS432: Computer Network Systems ©Dr. Fazal Noor Computer Science and Software Eng. Dept. Lab Instructor: Tuwailaa Alshammari University of Hail Configuration and management of Networks 2014Student ID: LAB 1 – Introduction to packet tracer LAB 1: Introduction to Packet Tracer and Simple 2 PC network. Objectives:ICS432: Computer Network Systems ©Dr. Fazal Noor Computer Learn Science Packet and Tracer Software to Eng.design Dept. and simulate networks. Lab Instructor: Tuwailaa Alshammari University Learn of Hail to create a simple LAN with two PCs using an EthernetStudent hub ID: and two straight through cables to connect the workstations. Learn to configure and verify the network connectivity. Learn aboutLAB various 1: Introduction network related to Packet commands. Tracer and Simple 2 PC network. Objectives:1.) Click on Packet Tracer Icon on the desktop of your computer screen. 2.)Learn You Packet will see Tracer a window to design appear and as simulate below. networks. Learn to create a simple LAN with two PCs using an Ethernet hub and two straight through cables to connect the workstations. Learn to configure and verify the network connectivity. Learn about various network related commands. 1.) Click on Packet Tracer Icon on the desktop of your computer screen. 2.) You will see a window appear as below.
3. Click on Help then click on Tutorials. Under Tutorials > Click on Interface Overview. An automated tutorial will begin. Try to understand it as much as possible. When finished with the tutorial start the next tutorial. Under Logical Workspace > click on Creating a Network Topology. Again an automated tutorial will begin and go through it. After finishing, you will now design a simple network next. 4. By now you should have a basic understanding of Packet Tracer. Now let us make a simple network with3. Click 2 PC on and Help a hubthen or click a switch. on Tutorials. Move your Under mouse Tutorials cursor to> Click lower on left Interface corner Overview.over the PC icon.An automated Now click ontutorial PC icon. will Onbegin. the windowTry to understandright, you will it as see much Generic as possible. under a PCWhen icon. finished Click on with it and the drag tutorial the mouse start the to mainnext tutorial.window Underand drop Logical it. YouWorkspace will see a> pictureclick on of Creating PCO. Againa Network click on Topology. PC icon andAgain drag an the automated mouse to thetutorial main will window begin andand golet through it go. it.You Afterwill see finishing, another you PC1 will appearing. now design That a simple is you network have 2 computersnext. on the main window. 4. By now you should have a basic understanding of Packet Tracer. Now let us make a simple network 5.with Now 2 PC choose and a ahub hub. or Youa switch. do this Move by going your mouseto the lowercursor corner to lower and left choosing corner over the thirdthe PC icon, icon. note Now in click the boxon PC the icon. word On Hubs the willwindow appear. right, Onyou the will right see windowGeneric undernext to a it, PC you icon. will Click see on2 generic it and dragdevices. the mouseClick onto itmain and window drag the and mouse drop toit. mainYou window will see anda picture let go. of PCO.This isAgain what clickyou onshould PC icon have and by drag now, the 2 PCsmouse and to 1 Hub.the main window and let it go. You will see another PC1 appearing. That is you have 2 computers on the main window. ______ 5. Now choose a hub. You do this by going to©Dr. the Fazal lower Noor corner and choosing the third icon, note in the box the word Hubs will appear. On thehttp://faculty.uoh.edu.sa/f.noor/ right window next to it, you will see 2 generic devices. Click on3 it and drag the mouse to main window and let go. This is what you should have by now, 2 PCs and 1 Hub. ______ ©Dr. Fazal Noor http://faculty.uoh.edu.sa/f.noor/ 3
ICS432: Computer Network Systems ©Dr. Fazal Noor ComputerICS432: Computer Science andNetwork Software Systems Eng. Dept. Lab Instructor:©Dr. TuwailaaFazal Noor Alshammari UniversityComputer ofScience Hail and Software Eng. Dept. LabStudent Instructor: ID: Tuwailaa Alshammari University of Hail Student ID:
Configuration and management of Networks 2014 6.6. Now Now wewe wantwant to connect thethe cables.cables. Again Again lower lower left left corner corner the the 5th 5th icon icon (zig (zig zag zag orange orange in color) in color) click click on it and in box the word connections will appear. Now on the window on right you will see different on it and in box the word connections will appear. Now on the window on right you will see different types of cables appearing. Choose the third on “Copper Straight Through”. Click on this cable and drag it types of cables appearing. Choose the third on “Copper Straight Through”. Click on this cable and drag it to the PCO and to the Hub. You will see ports with numbers you may connect to anyone. Again repeat to the PCO and to the Hub. You will see ports with numbers you may connect to anyone. Again repeat between PC1 and the Hub. This is what you should have by now. between PC1 and the Hub. This is what you should have by now.
ICS432: 7. Now Computer that we Network have the Systems simple network, we need to assign IP addresses to©Dr. the Fazal 2 PCs. Noor Fast double Computer Science and Software Eng. Dept. ______ Lab Instructor: Tuwailaa Alshammari 7. Now that we have the simple network, we need to assign IP addresses to the 2 PCs. Fast double University of Hail ©Dr. Fazal Noor Student ID: click on PC0. You will get pop up window http://faculty.uoh.edu.sa/f.noor/ of______ PCO and click on “Config” menu to get the window below.4 Click on Fastethernet. In the IP Address type©Dr. in 192.168.7.5 Fazal Noor and for subnet mask type 255.255.255.0. Click on X to close this box afterwards. http://faculty.uoh.edu.sa/f.noor/ 4
8. Similarily do with PC1 but assign the following IP address 192.168.7.10 and subnet mask 255.255.255.0
Click on X to close the sub window.
9. To test the ping command. Fast double click on PCO to get the following. Under desktop click on
“COMMAND PROMPT” window.
______ ©Dr. Fazal Noor http://faculty.uoh.edu.sa/f.noor/ 5 ICS432: Computer Network Systems ©Dr. Fazal Noor Computer Science and Software Eng. Dept. Lab Instructor: Tuwailaa Alshammari University of Hail Student ID: click on PC0. You will get pop up window of PCO and click on “Config” menu to get the window below. Click on Fastethernet. In the IP Address type in 192.168.7.5 and for subnet mask type 255.255.255.0. Click on X to close this box afterwards.
ICS432: Computer Network Systems ©Dr. Fazal Noor Configuration and management of Networks 2014 Computer Science and Software Eng. Dept. Lab Instructor: Tuwailaa Alshammari University of Hail Student ID: 8. Similarily do with PC1 but assign the following IP address 192.168.7.10 and subnet mask 255.255.255.0
Click on X to close the sub window.
9. To test the ping command. Fast double click on PCO to get the following. Under desktop click on
“COMMAND PROMPT” window.
______ ©Dr. Fazal Noor http://faculty.uoh.edu.sa/f.noor/ 5
10. You will get the following and in the window type: ping 192.168.7.10 < press enter >.
ICS432: Computer Network Systems ©Dr. Fazal Noor Computer Science and Software Eng. Dept. Lab Instructor: Tuwailaa Alshammari University of Hail Student ID: You will see that 4 packets are sent to PC1 and get a reply back. If you do not get a reply then something is wrong with your network. The ping utility shows if the connection between source pc and destination pc is working or not. ______ 11.) After testing out the “ping” command. Do the©Dr. following Fazal excerises.Noor
12.) In the Command Prompt as above insteadhttp://faculty.uoh.edu.sa/f.noor/ of typing ping. Now type ipconfig < press enter >. 6
Write down what you get:
IP address
Subnet mask
Default gateway:
13.) Next type tracert 192.168.7.10 < press enter >. What do you see ?
14.) Next type arp –a
15.) Practice by adding more PCs to your network and assigning IP addresses.
16.) If you assign one PC an ip address of 192.168.7.15 and another PC with ip address of 192.168.8.20.
Can you ping each other ? Yes or No.
______ ©Dr. Fazal Noor http://faculty.uoh.edu.sa/f.noor/ 7 ICS432: Computer Network Systems ©Dr. Fazal Noor Computer Science and Software Eng. Dept. Lab Instructor: Tuwailaa Alshammari University of Hail Student ID: You will see that 4 packets are sent to PC1 and get a reply back. If you do not get a reply then something
is wrong with your network. The ping utility shows if the connection between source pc and destination Configuration and management of Networks 2014 pc is working or not.
11.) After testing out the “ping” command. Do the following excerises.
12.) In the Command Prompt as above instead of typing ping. Now type ipconfig < press enter >.
Write down what you get:
IP address
Subnet mask
Default gateway:
13.) Next type tracert 192.168.7.10 < press enter >. What do you see ?
14.) Next type arp –a
15.) Practice by adding more PCs to your network and assigning IP addresses.
Exercise 3 – Connecting to a Switch and navigating the Cisco Command Line Interface 16.) If you assign one PC an ip address of 192.168.7.15 and another PC with ip address of 192.168.8.20. Create the following topology in Packet Tracer: Can you ping each other ? Yes or No.
______ ©Dr. Fazal Noor http://faculty.uoh.edu.sa/f.noor/ 7
There are two ways to access the CLI of the switches in packet tracer: The first one is to click in the switch and then choose the CLI tab, the other is to access them remotely via the client PCs (has would be the case in a real network). However to access the switches via the PCs some configuration has to be already in the switches, namely the creation of a vty port and the configuration of a management IP address. Connecting via the console port to the equipment is usually how we perform these configurations. To simplify we will do them using the Packet Tracer interface.
1) Select the 2960 Switch1, enter the CLI in the CLI tab of the packet tracer window.
CCNPv6 SWITCH
CCN Pv6 SWITCH Step 1: Connect to the switch console port and enter privileged EXEC mode. CCNPv6 SWITCH From a computer running a terminal emulation program, connect to the console port of the switch that you Step 1: Connect to the switch console port and enter privileged EXEC mode. want to clear using a console cable. You should see a console prompt that includes the switch’s hostname, Step 1: Connect to the switch console port and enter privileged EXEC mode. Fromfollowed a computer by a > or running #. The defaultaConfiguration and management of Networks 2014 terminal switch emulation hostname program, is “Switch.” connect to the console port of the switch that you want to clear using a console cable. You should see a console prompt that includes the switch’s hostname, FromSwitch> a computer running a terminal emulation program, connect to the console port of the switch that you followed by a > or #. The default switch hostname is “Switch.” wantor to clear using a console cable. You should see a console prompt that includes the switch’s hostname, InSwitch> the terminal you can see that after pressing return you’re placed into Cisco CLI with the “>” followedSwitch# by a > or #. The default switch hostname is “Switch.” greateror then sign next to the hostname. This is called user mode. Switch> Switch#If the prompt ends with a >, you are not in privileged EXEC mode. To enter privileged EXEC mode, type 2)orenable Press . This? to might get a require context a pmodeassword. sensitive If you are help in a list configuration of available mode, commands type exit orto end execute. from your currentIfSwitch# the prompt privilege ends withleve al. >Navigate, you are not using in privileged the space EXEC bar mode.and quit To usingenter privileged the q key EXEC. mode, type enableIf not enabled:. This might require a password. If you are in a configuration mode, type exit or end. IfSwitch> the prompt enable ends with a >, you are not in privileged EXEC mode. To enter privileged EXEC mode, type 3)IfenableSwitch# notIn enabled:user. This mode might you require can a elevate password. your If you privileges are in a configurationby issuing themode, command type exit enable or end.. If an enable passwordSwitch> enableor enable secret is configured then you’ll be prompted to provide such authentication IfIf notin global enabled: configuration mode: informationSwitch# to elevate your privileges. Switch>Switch(config)# enable exit If in global configuration mode: Switch# 4)Switch(config)# In privileged mode exit enter the command configure terminal. This command will place you into StepglobalSwitch#If in 2: global Delete configuration configuration the VLAN mode mode: database where file. you can make device configuration changes. The global Switch(config)# exit configurationIn privileged EXEC mode mode, is denoted type delete by theflash: (config)#vlan.dat prompt.and press Enter. If you are asked to confirm, press StepSwitch# 2: Delete the VLAN database file. Enter until you are back to the original prompt. 5)In Starprivileged by erasing EXEC mode,the VLAN type delete database flash: filevlan.dat and the and startup press Enter. config: If you are asked to confirm, press StepSwitch# 2: Delete delete the VLANflash: vlan.datdatabase file. EnterDelete until flash:vlan.dat? you are back to the original[confirm] prompt. Switch#InSwitch# privileged delete EXEC flash:mode, typevlan.dat delete flash:vlan.dat and press Enter. If you are asked to confirm, press CCNDeleteEnterPv6 SWITCH until flash:vlan.dat? you are back to the [confirm] original prompt. StepSwitch# 3: Erase the startup config from NVRAM. Switch# delete flash:vlan.dat MotherboardDeleteAfter deleting flash:vlan.dat? the assembly vlan.dat file, number you [confirm] ca n erase : 73the - startup10390 -configuration03 on the switch by typing erase startup- Step 3: Erase the startup config from NVRAM. PowerSwitch#config . supplyYou again part have number to press Enter to confirm.: 341- 0097-02 AfterMotherboard deleting the serial vlan.dat number file, you ca n erase : theFOC11036013 startup configuration on the switch by typing erase startup- PowerSwitch# supply erase serial startup number-config : AZS1103015V Stepconfig 3: Erase. You again the have startup to press config Enter tofrom confirm. NVRAM. MoErasingdel revision the nvram number filesystem will : B0remove all configuration files! Continue? Switch#MotherboardAfter[confirm] deleting erase therevision vlan.datstartup file,number-config you ca n erase : C0 the startup configuration on the switch by typing erase startup- [OK] ErasingModelconfig .number You the again nvram have filesystem to press Enter will to : confirm. WSremove-C2960 all-24TT configuration-L files! Continue? [confirm]SystemErase ofserial nvra m:number complete : FOC1104W0G0 [OK]TopSwitch# Assembly erase Part startup Number-config : 800-27221-02 EraseTopErasing Assembly of thenvra nvramRevisionm: complete filesystem Number will : C0 remove all configuration files! Continue? StepSwitch#Vers[confirm] 4:ion Reload ID the device, but do not : saveV02 the system configuration if prompted. CLEI[OK] Code Number : COM3L00BRA After clearing the switch configuration, reload the switch by typing reload and pressing Enter. If you are asked StepHardwareErase 4: Reload of Boardnvra them: Revisiondevice, complete but Number do not : save0x01 the system configuration if prompted. Switch#whether to save the current configuration, answer no. Press Enter to confirm. The switch starts reloading. After Your clearingoutput might the switch look different configuration, depending reload on the the switch switch by model typing that reload you are and using. pressing This Enter. step might If you take are aasked few whetherSwitchminutes, to Portsbecause save theModel the current switch configuration, needs time to answerSW reload. Version no . Press Enter to confirm. SW Image The switch starts reloading. Step------4: Reload ----- the----- device, but do not ------save the system configuration ------if prompted. Your output might look different depending on the switch model that you are using. This step might take a few *Switch# 1 2 6reload WS -C2960-24TT-L 12.2(46)SE C2960-LANBASEK9-M minutes,After clearing because the theswitch switch configuration, needs time toreload reload. the switch by typing reload and pressing Enter. If you are asked whetherSystem toconfigur save theation current has configuration, been modified. answer no Save?. Press [yes/no]: Enter to confirm. no The switch starts reloading. StepSwitch# 5: When reload the switch restarts, do not enter the initial configuration dialog, but YourProceed output with might reload? look different [confirm] depending on the switch model that you are using. This step might take a few terminate autoinstall. Systemminutes, configurbecause theation switch has needs been time modified. to reload. Save? [yes/no]: no The%SYS switch-5-RELOAD: might log Reloadmessages requested to the console, by suchconsole. as interfaces Reload coming Reason: up and Reload down. When command. you see the ProceedSwitch#Base ethernet withreload reload? MAC Address: [confirm] 00:1b:0c:6d:8f:00 “Press Xmodem RETURN file systemto get started!” is available. prompt, press Enter. %SYSSystemThe -password5- RELOAD:configur-recovery Reloadation requestedhasmecha beennism modified.byis console.enabled. Save? Reload [yes/no]: Reason: noReload command. BaseIf you areethernet asked to MACenter Address:an initial configuration 00:1b:0c:6d:8f:00 dialog, type no . This places you at the user EXEC prompt. If youProceed accidentally with type reload? yes, you [confirm]can break out of the initial configuration dialog at any time by pressing Ctrl-C. If Xmodem file system is available. All contentsTheyou are arepassword Copyrightasked whether© -1992recovery–20 10you Cisco want Systems,mecha to terminate Inc.nism All rights is autoinstall, reserved. enabled. This documentpress Enter is Cisco for Public “yes.” Information. Page 2 of 5 %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command. PressBase ethernetRETURN to MACget Address:started! 00:1b:0c:6d:8f:00Enter All contents6) Perform the same op Xmodem are Copyright file © 1992system–2010 Ci scoiserations in the Systems, available. Inc. All rights reserved. 3560 switch. This document is Cisco Public Information. Page 2 of 5 The password --- -Systemrecovery Configuration mechanism Dialogis enabled. ---
Would you like to enter the initial configuration dialog? [yes/no]: no All contents are Copyright © 1992–2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 5 Would you like to terminate autoinstall? [yes]: Enter
All contents are Copyright © 1992–2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 5 of 5 CCNPv6 SWITCH
Required Resources 2 switches (Cisco 2960 with the Cisco IOS Release 12.2(46)SE C2960-LANBASEK9-M image or comparable) 2 switches (Cisco 3560 with the Cisco IOS Release 12.2(46)SE C3560-ADVIPSERVICESK9-M image or comparable) 4 PCs (optional) Ethernet and console cables
Step 1: Prepare the switches for the lab. Power up the switches and use the standard process for establishing a HyperTerminal console connection from a workstation to each switch in your pod. If you are connecting remotely to the switches, follow the instructions that have been supplied by your instructor. Remove all VLAN information Configuration and management of Networks 2014 and configurations that may have been previously entered into the switches. Refer to Lab 1-1, “Clearing a Switch,” and Lab 1-2, “Clearing a Switch Connected to a Larger Network.” 7) Perform initial switch configurations for both switches Step 2: Configure basic switch parameters.
Assign each switch a hostname and configure an IP address on the management VLAN according to the diagram. By default, VLAN 1 is used as the management VLAN. Enter basic configuration commands on each switch according to the diagram. DLS1 example: Switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# hostname DLS1 DLS1(config)# interface vlan 1 DLS1(config-if)# ip address 10.1.1.101 255.255.255.0 DLS1(config-if)# no shutdown (Optional) On each switch, create an enable secret password and configure the vty lines to allow remote access from other network devices. DLS1 example: DLS1(config)# enable secret cisco DLS1(config)# line vty 0 15 DLS1(config-line)# password cisco DLS1(config-line)# login
Step8) After3: Disp thelay configuration the switch of default the switches VLAN you information. can click in the PCs and in the config tab choose theUse FastEtherthe show netvlan tab.command For inhost privileged C configure mode on any a switch. manual The IP following address output of is 10.1.1.100 for a 2960 switch. with a 255.255.255.0ALS1# show vlanmask. Do the same for host A with address 10.1.1.99 255.255.255.0.
9)VLAN Now Name open the desktop tab in the pc window Statusand start a commandPorts prompt. You can now reach ------the1 CLI default of the switches by telnet to their VLAN active 1 IP addre Fa0/1,sses. Fa0/2, Fa0/3, Fa0/4 Fa0/5, Fa0/6, Fa0/7, Fa0/8 LAB 1 – Introduction to GNS3 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 1) Install the GNS3 network simulator from the http://www.gns3.net/ Fa0/21, Fa0/22, site. GNS3 Fa0/23, depends Fa0/24 on several other programs to operate. Those dependencies Gi0/1,include WinPCAP,Gi0/2 Dynamips and Qemu. You should select them for installation during the setup procedure. You can find detailed setup instructions in http://www.gns3.net/documentation/. All contents are Copyright © 1992–2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 16
2) After the installation start the GNS3 Simulator. Verify is Dynamics is running correctly. For this you should go to the preferences menu under the dynamics tab the path for the dynamics file should be file. You can press the test settings button to start dynamics and see if it is operating correctly.
Configuration and management of Networks 2014
3) The next step is installing IOS images for the routers. GNS3 uses Dynamips as a Hypervisor to run IOS images and provide virtual machines executing the router operating system. You need to provide a path for those images and associate them with the desired router. In the course web page you can find image files to use.
4) Once you have obtained your own copy of a Cisco IOS for one of the supported platforms, you are ready to continue. Supported platforms are Cisco 7200, 3600 series (3620, 3640 and 3660), 3700 series (3725, 3745) and 2600 series (2610 to 2650XM, 2691).
5) On the Edit menu, choose IOS image and hypervisors. Then under the IOS Images tab, click … and then find your Cisco IOS file and click Open. The file will appear as your Image file. Next, click the drop-down arrow next toPlatform and choose the platform that corresponds to your IOS file.
6) Now click the drop-down arrow next to Model and choose the model corresponding to your IOS file. For now, we’ll accept the default values that remain. However, there is a very important value called the IDLE PC value that we will want to include. We’ll get to that later. Click the Save button and then the Close button. This will return you to the default GNS3 window.
Configuration and management of Networks 2014
An important issue in GNS3 is performance. For each specific computer where it is running and for each specific image used in Virtual machines you need to configure a value called IDLE PC that greatly impacts the performance of the simulations. When an IOS is running, it will consume up to 100% of your CPU time. This will cause your computer to become very sluggish and will prevent building more complex topologies. However, if we use an IDLE PC value, we can reduce CPU usage dramatically. It puts the IOS into a sleep state when it is not in active use and wakes it up only when it is necessary.
7) Start by creating a topology with one router. Click on a router icon under Nodes Types corresponding to the IOS platform you are using.
You must use a platform for which you defined an IOS. Drag an appropriate router node type over to the workplace pane in the middle and let go. We now have a router ready to configure.
8) Right-click the router and choose Configure.
Click on R1 and then the Slots tab. Click the drop-down arrow next to slot0 and choose an adapter that includes FE in its description. This will add a FastEthernet adapter to the router. Next, click the drop-down arrow next toslot1 and choose PA-4T+, PA-4T, or NM- 4T (if you do not have these exact adapters, just choose something close.). This will add four serial interfaces to the router. Click OK.
9) Right-click the router and choose Start. Right-click the router again and choose Console. A Putty console opens up.
Configuration and management of Networks 2014
You may need to press Enter once initially in the Console window. After a few seconds, your virtual router should have started.
10) Apply an IDLEPC value. Be sure you can see the prompt of your router in Putty window. Right-click R1 and choose Idle PC. GNS3 will spend a moment calculating an Idle PC value before presenting the screen to the right. If you click the drop-down arrow, you see a list of possible idlepc values. Potentially better idlepc values are marked with an asterisk. Choose one of the values with an asterick and click OK.
If you choose IOS images and hypervisors on the Edit menu, and double-click on the image under the IOS Images tab, you’ll see the new idlepc value displayed under Settings.
You can use the task manager (windows) activity monitor (MAC OS) or System Monitor (Ubuntu) to see the results in the CPU usage by the Dynamips process when you apply different IDLEPC values.
11) Return to the terminal window to use your router. You are actually running the Cisco IOS that you chose. All commands supported by the IOS are available. Take a brief tour entering in the 3 different modes of IOS.