Cnd labguide

Ya Bao

Computer Network Design EEB_7_876

Lab Manual

Computer Network Design Lab Manual

Contents

1. Lab Report Guidelines.........................................................................................................2

2. Report requirements:...........................................................................................................3

3. Report submission...............................................................................................................3

4. User name and password....................................................................................................3

5. The assessment of the lab report........................................................................................4

6. Workshop tasks................................................................................................................... 5

Lab 1: Internet Connect for Home Network.....................................................................................6

Lab 2 ICMP Ping..........................................................................................................................15

Lab 3 LAN Implementation..........................................................................................................19

Lab 4 WAN Implementation.........................................................................................................24

Lab 5 Network design and construction.......................................................................................29

Lab 6 Services Provided on Network...........................................................................................35

Lab 7 IP Telephony......................................................................................................................40

Lab 8 Packet Tracer tutorial materials..........................................................................................48

Lab 9 Prototyping a Simple Network............................................................................................52

Other PT lab exercises:..................................................................................................................54

Edited by Ya Bao Page 1


1. LAB REPORT GUIDELINESFormal lab reports should be typed on A4 paper and contain the following sections and don’t exceed the limit of the length.

Title Page: Title of the experiment, Author’s name and student number. Your instructor's name. The date the report was submitted.

Aims and objectivesWhat was the purpose of the experiment? What was it supposed to reveal?

Introduction/TheoryThe introduction should give some background on the problem your experiment investigated.Theory section presents theoretical models, equations, physical principles, etc., that are relevant to the investigation described in the report. It should be within one page.

Materials List everything needed to complete your experiment.

Methods/Procedure Describe the steps you completed during your investigation. Don’t simply copy the instructions given in the lab manual. You need to describe what YOU did. Make good use of diagrams, sketches, or photographs to show important layout, wiring and connections

Experimental Results and explanationsPresent your results and summarise the data using figures and tables. Each figure and each table must have a number and a caption. Do not simply dump a bunch of graphs and tables into this section with no explanation. It is best to locate figures and tables within the text (and preferably on the same page where they are referred to) rather than grouping them together at the end of the report.

DiscussionDiscuss the meaning and importance of the experimental results, compare the results to theoretical predictions, describe the accuracy of the results, address discrepancies, and ultimately draw conclusions in regards to the objectives of the experiment.

Conclusions and RecommendationsThis section summarizes the conclusions that have been made and gives specific recommendations for the next steps that could be taken in subsequent experiments or further research.

ReferencesIf your research was based on someone else's work or if you cited facts that require documentation, then you should list these references. http://www.lsbu.ac.uk/library/html/documents/HS28-numeric2012.pdf is a very helpful sheet on how referencing should be done in any technical report (Lab or final project)


http://www.lsbu.ac.uk/library/html/documents/HS28-numeric2012.pdf


2. REPORT REQUIREMENTS:

The reports should be 14-20 A4 sides. Everyone must produce his/her individual report independently. Any duplicated

paragraphs will be penalised.

3. REPORT SUBMISSIONDeadline of submitting:

contents deadline Submit to noteAssignment-1 Network

Simulation on RIVERBED MODELER

19 Nov 2014 Faculty office Keep your receipt Keep electrical copy

Assignment-2 Network implementation on Cisco

7 Jan 2015 Faculty office Keep your receipt Keep electrical copy

Late submission will be penalised in accordance with the University regulation. Keep your receipt and the electrical copy!

The feedback of your report will be available after 15 working days of submission.

4. USER NAME AND PASSWORD

Edited by Ya Bao Page

CND Workshops will be carried out in Telecommunication Lab, T714/9

Lab PCs, choose to login to Window XPUser name: labPassword: lab

On the desktop, double click on the icon of RIVERBED MODELER Save your works on your own flash driver.

Cisco 2811 router:Username: lsbuPassword: lsbuCNAT

3


5. THE ASSESSMENT OF THE LAB REPORT

Formal Report Assessment

Student ID:Student Name:

Submission Date:

A+ A A- B C D E F

Presentation/Format (20%)

Understanding(20%)

Results and discussions (30%)

Configurations and simulations(30%)

Comments

grade* 0 Assessed by: Ya BaoDate:



6. WORKSHOP TASKS

Workshops of Computer Network Design consists TWO broad area of practice.

6.1 Network design and simulated on software packageRIVERBED MODELER has been used to design a computer network and analyse performances of the network.

Lab.1 to Lab.4 are designed to help you familiar to RIVERBED MODELER. You don’t need to complete all RIVERBED labs before you start to design your own network. Your coursework should write on an own designed network and performance analyses of that network.

6.2 Construct a network on Cisco devicesWorkshops are carried out in group of 2-3 students. However, every student will be expected to keep an individual logbook where procedures and findings will be documented. Everyone must prepare his/her own report for the assessment.

Every group will be provided necessary equipment, software and help. Aim of these workshops is to design and implement a real computer network in the lab and provide services on the network.

Equipment list:

2 Cisco 2811 routers; 2 Cisco 2960 switches; 4 PCs; 6 straight-through cables; 1 cross-over cable; 1 console cable, IP camera, Wifi Access points, IP telephones, PoE switch.

Software package:

Cisco Packet Tracer, 3CX SIP server and soft phone, Xampp server and clinet.

Every group should try to build a network based on equipment provided. The network design and implementation should include:

IP addressing; routing protocol; router/switch configurations; cabling; applications (Ping, FTP, HTTP, WiFi Network extension, CCTV on IP network, IP

telephony) on the network; Capacity and Performance analysis of the network. Use PT to help you build and analyse the network structuring.


Lab 1: Internet Connect for Home Network RIVERBED MODELER

LAB 1: INTERNET CONNECT FOR HOME NETWORK

Objective

This lab teaches the basics of using RIVERBED MODELER. We investigate application performance and capacity planning, by changing the link speed between a home LAN and its ISP.

Overview

RIVERBED MODELER provides a Virtual Network Environment that models the behaviour of networks, including its routers, switches, protocols, servers, and individual applications. The Virtual Network Environment allows IT managers, network and system planners, and operation’s staff to more effectively diagnose difficult problems, validate changes before they are implemented, and plan for future scenarios such as traffic growth and network failures.

You can do “what if” analyses (called scenarios) on network designs, just as you can on spreadsheets with financial business models. However, instead of looking at “bottom line” financial numbers, you will be looking at how response times, latency (delays) and other network performance measures will change under different network design approaches.

To create a network simulation (called a project), you specify the nodes (computers, switches, routers, etc.) in your network, the links between nodes, and the applications that will be running on the nodes.

In this exercise, the initial simulation (project) has been built for you. It models a family’s home PC network, which has three PCs connected to the Internet for game playing; web browsing, E-mail, audio streaming, and FTP (file transfer protocol).

Your objective will be to conduct a series of what-if simulations (scenarios) to see how performance differs if the family connects to the Internet using 1) a slow modem downloading at 20 kbps, 2) a fast modem downloading at 40 kbps, 3) a cable modem or DSL line downloading at 512 kbps, or 4) a T1 line (discussed in Chapter 6) with download speed of 1.544 Mbps

For each scenario, you will set the download speed in the simulation model, run a simulation, and view the results. You will be addressing the question of whether faster connections are worth higher prices for the home network.

Lab InstructionsS t ep 1: Open L ab file

RIVERBED MODELER consists of projects and scenarios. Each scenario represents the different what-if analysis performed by the users. Scenarios may contain different versions of the same network or models of different networks. A project consists of one or more network scenarios. In this lab, you will create 4 different scenarios comparing application performance with different connection speeds to the ISP.



1. Start Reverbed Modeler.2. Select File → Open… and make sure Project is selected from the pull-down menu at the top.

3. Scroll down to the project named Home_LAN, select it and click OK.

The figure above shows the simulated network. There are three PCs doing different tasks in this network. Each PC connects to the family’s 100 Mbps Ethernet switch via a UTP connection. The switch connects to the router, also via UTP. The cable modem is not shown; it is implicit in the WAN link connecting the home PC network to the Internet. Three Internet servers provide different services to the client PCs.

Near the top of the figure are two boxes that do not represent physical components: Applications and Profiles. The Applications node contains data about the applications used in the network, such as Web browsing. More specifically, traffic is associated with each application, so there is a difference between “light Web browsing” and “heavy Web browsing.” Internal file service and



print service traffic are not shown; these would be too light to make a difference in performance because the Internet WAN connection is the weak link in this network. In the Profiles icon, different applications are associated with different PCs.

The complete topology is laid out and the attributes for all the objects are pre- configured except the link data rate between the Router and the Internet cloud, this is our WAN link.

S t ep 2: Con f igure the L ink to 20 Kbps

In your first scenario, you will configure the WAN link as a 20 kbps dial-up line.1. Right-click on the WAN link, select Edit Attributes.

Here we can see the different link attributes. We will be changing the data rate attribute of this link.2. Click in the Value field of the data rate attribute and select Edit…3. Enter 20000; press Enter and then click OK.

S t ep 3: Con f igure a nd Run the Simula t ion

To simulate this network, we will use high fidelity discrete event simulation. The model simulates client/server application packets, which represent real world network traffic.

1. Click on the configure/run simulation button.2. Make sure the Simulation Duration is set to 8 hours to represent a typical day.3. Click Run, monitor the progress bar as the simulation proceeds.4. When the simulation completes, Click Close.

S t ep 4: V i ew R e sul ts We can now view various statistics including the web application Response Time experienced by the Researcher and the WAN link utilization. Follow the instructions below to view the statistics.

Performance for the WAN link

1. Right-click on the WAN link and select View Results to view the utilization results for this link.



2. Expand point-to-point and select utilization in both directions.3. Select Overlaid Statistics from the pull-down menu on the bottom right- hand corner to place the results in the same panel.

4. Select Show and then click Close in the View Results window.

Performance for PC2 (Researcher PC)

5. Right-click on the PC2 Researcher client and select View Results to view the web Response Time and Traffic Received.



6. Expand Client Http and select Page Response Time (seconds). Also make sure that the pull-down menu on the bottom right-hand corner is set to As Is.7. Click Close in the View Results window.

8. You can use the hide or show all graphs button to hide/show the graphs.

Your results should be similar to the graphs above. The download link Utilization averages about 80% and the upload link Utilization about 2%. With a download link utilization of 80%, this does not give much available bandwidth for potential new applications or users. The Response Time that the Researcher experiences is in the range of 5 to 7.5 seconds, which is painfully long. This slow WAN link is badly overloaded.

S t ep 5: 40 kbps S c e n ario

Implement a fast modem connection downloading at 40 Kbps. This is realistic throughput for a modem whose download speed is rated at 56 Kbps.1. Select Scenarios →Duplicate Scenario… and name the scenario as40K_dialup_connection.2. Click OK. This creates a copy of the existing scenario.

S t ep 6: Con f igure the L ink to 40 Kbps Right-click on the WAN link and change the data rate attribute to 40000.

S t ep 7: Run the 40 Kbps Simu l a t ion Rerun the simulation. You can refer to the steps given previously for setting the duration and running the simulation.

S t ep 8: V i ew R e sul ts for 40Kbps S cena r io Follow the same steps mentioned before to view the link utilization, andResponse Time by the researcher PC.



Notice, that the link Utilization is reduced by half.The web application Response Time also went down from about 6 seconds to around 2.25 seconds. This is a significant improvement, both, in Utilization and Response Time.

S t ep 9 : Set the link to 512 Kbps and run the simula t ion

In the third scenario, you will simulate a 512 kbps download speed. This is a realistic downloading throughput for a cable modem or DSL line. This WAN connection

Duplicate the scenario as before and name it 512K_Cable_Modem_connection. Set the data rate for the WAN link to 512000. Rerun the simulation. View the results for link utilization, Response Time and Traffic Received by the

Researcher PC.

The Utilization went down to 4% and the Response Time for the Researcher went down to 0.15 seconds. The cable modem improves our download times greatly. Response time is very



good.

S t ep 1 0: Con f igure t he link to T1 li ne and run the simula t ion

The ISP also provides residential T1 connection. T1 lines, offer a rated speed of 1.544 Mbps in both directions. This is also its actual throughput. The fourth scenario will consider the benefits of using a T1 WAN link to the ISP.

Duplicate the scenario again and name it T1_connection.Change the data rate of the WAN link to T1 from the pull-down menu.Rerun the simulation.

S t ep 1 1: Co mpa re R e sul ts

Rather than viewing the results for the T1 link alone, let us compare the results of Utilization and Response Times for all the 4 scenarios. This will give us a broader picture of the effect of changing the data rate.

1. Select Results Ω Compare Results…2. To compare the utilization statistics, choose the following statistics:3. Make sure that All Scenarios is select.

4. Click Show. To compare the Response Time, unselect the previous statistics, change the filter on the right-hand bottom corner from As Is to average and then choose the following statistics:



Here are the results

We can see from these results that as the data rate increases from 20K to 40K to 512K, the Utilization becomes better. Also the Web Application response time becomes better.

However, the Response Time and Utilization do not get affected much by changing the data rate from 512K to T1 line. For the current number of users, the T1 connection does not offer much benefit. This shows that upgrading to a T1 link will not be economically feasible with the



performance improvement that it gives.

Further research

So far, every scenario had step-by-step instructions. Now, here are some advanced scenarios for you to run.

Advanced Scenario 1. Many statistics are being collected like the throughput and the queuing delay on the WAN link. View these 2 results for the four scenarios and prepare a brief report of your observation.

Advanced Scenario 2. Create a duplicate scenario. Change the data rate of the WAN link between the Router and the ISP to get an average response time of 1 sec. (Hint: From the results, we can see that the data rate might fall between 40 Kbps and 512 Kbps.) What WAN speed did your find to give this response time?

Advanced Scenario 3. There is continuous streaming between the music server and PC1 defined by a traffic demand object. You can view this object by selecting View → Demand Objects → Show All in the menu. Try changing the Traffic volume for this demand. (Hint: Edit the Traffic (packets/sec) and Traffic (bits/sec) attributes of the Demand Object.) Observe its effect on the web response time for the researcher. Briefly describe the data values you changed and the impact on the researcher.

Advanced Scenario 4. What would happen if there were FIVE more PCs? Select and Copy the Researcher PC. Then paste the PC. Copy more PCs in the similar manner. Connect these FIVE PCs to the switch by copying and pasting the links connecting the first researcher PC and the switch. Run the simulation and see view the web Response Times of each of these PCs for all the data rates. What did you find?

Advanced Scenario 5. Here is a harder task. Add more applications to the researcher PC and check the response time that it gets. (Hint: To add applications to a client, you need to edit the attributes of the Profile object and edit the Profile Configuration.)

References:http://www.opnet.com/university_program/teaching_with_opnet/textbooks_and_materials/itg_panko.html


LAB 2 ICMP Ping Riverbed Experiments

LAB 2 ICMP PINGRIVERBED MODELER OverviewRIVERBED MODELER is a virtual environment for modelling, analysing and performance prediction of IT infrastructures, including applications, servers and network technologies.This RIVERBED MODELER Academic Edition is based upon the commercial version. It can be downloaded from the website https://splash.riverbed.com/community/product-lines/steelcentral/university-support-center/blog/2014/06/11/riverbed-modeler-academic-edition-release and used for free with some license constraints.

1. ObjectiveThe purpose of designing this lab is to study the traces of ping in following scenarios.

There is no failure occur in network. There is a failure occur in network.

Fig 1.1 Network Overview

Internet Control Message Protocol (ICMP)Internet Control Message Protocol (ICMP) provides a means for transmitting messages from routers and other hosts to a host. It is encapsulated in IP datagram and is used for troubleshooting the network. ICMP is used when datagram cannot reach to its destination due to unreachable host or time to live exceeded.


https://splash.riverbed.com/community/product-lines/steelcentral/university-support-center/blog/2014/06/11/riverbed-modeler-academic-edition-release

https://splash.riverbed.com/community/product-lines/steelcentral/university-support-center/blog/2014/06/11/riverbed-modeler-academic-edition-release


2. Lab DescriptionScenario consists of 7-routers-Randomised Mesh Topology-backbone with 2 workstations WS1 and WS2. WS1 sends an echo request to WS2 and WS2 will responds with an echo reply. We will study the path of request and reply packets went through the network. In the other scenario there is link failure occur and we will study how does it effect on ping traces.

3. Creating Network (this step can be simplified by open an existing project)1. Start RIVERBED MODELER and create a new project. File New and

chose a Project.2. Project name: <your name>_Ping

Scenario name: Link_UP and Click OK.3. Select Create Empty Scenario and click Next.4. Select Campus and click Next.5. Select Kilometre and X Span to 10 and Y Span to 10 then click Next.6. Do not include any Technologies and press Next.7. Review the values and press OK.8. Now from menu bar go to Topology Rapid Configuration. Select

Mesh,Randomized. Set the dialogue box appeared as Fig 1.2.

Fig 1.2 Rapid Configuration (Randomized Mesh)

9. Open the Object Palette by click . Select Sim_Int_Model_List then Drag & Drop two Sm_Int_wkstn workstations in the Grid.

10. Change their attributes. Right click on the station, press Edit Attributes. Select Application Supported Profiles_ rows: 0. Repeat this process for the two workstations.

11. Connect the two workstations to the two routers directly using 10BaseT wires from the same palette as in Fig 1.1.

12. Rename all routers by right click on the router and selecting Set Name.



13. Now Set up ICMP traffic. Place IP Attribute Config from internet_toolbox palette in to Grid. Right click on it Edit Attribute in IP Ping Parameters_row 0, click to open Details and set

Pattern: Default Interval (Sec): 120 Packet Size (bytes): 128 Count: 700 Record Route: Enabled

And then Press OK to accept the changes.

14. Draw an ICMP ping demand from one to other host. Select the object of ip_ping_traffic. It can be found from Object Palette (Internet_toolbox).

Click on one workstation (start) and then to the other one (end). Then press the right click and select Abort Demand Definition to stop drawing wires.To edit the attribute of ICMP demand, right click on the flow line and then select Edit Attribute do the only change in Start Time as Constant (100).

15. Now choose RIP as routing protocol in this scenario by from the Menu Bar of the Project Editor, Protocols IP Routing Configure Routing Check only on RIP and press OK.

16. Again from Project Editor, Protocol RIP Configure Start Time. Select Mean Outcome: 10 and press is OK.

4. Configuring Simulation

1. Click on configure/ run simulation button and configure these values.From Common Tab set the Duration: 30 minutes and from Global Attributes Tab and configure these values IP Routing Table Export / Import: Export (It will export routing tables to a file at the end).RIP Sim Efficiency: DisableRIP Stop Time: 1000

2. Click on Run5. Result Analysis

Once the simulation is over,

1. Close the Simulation window by pressing Close.

2. Right Click anywhere in Grid and select Open Simulation Log. Check the paths for Echo Message and Echo Reply, Node names and IP addresses from the packets have gone through and hop delay. Table 2.1 shows the Ping Report.



IP Address Hop Delay Node Name192.0.14.2 0.00000 Campus Network.WS1192.0.5.2 0.00020 Campus Network.Borough_Road192.0.6.1 0.00280 Campus Network.Techno_Park192.0.8.1 0.00110 Campus Network.Perry_Library192.0.8.2 0.00027 Campus Network.WS2192.0.8.2 0.00001 Campus Network.WS2192.0.6.2 0.00020 Campus Network.Perry_Library192.0.5.1 0.00110 Campus Network.Techno_Park192.0.14.1 0.00111 Campus Network.Borough_Road192.0.14.2 0.00026 Campus Network.WS1

Table 2.1 Ping Report for Link_UP

6. Question

Duplicate the current scenario and named it Link_Down. Fail the link between the routers which is used by ping in Link_UP scenario by right clicking on Link and select Fail This Link because that link is used by Ping in Link_UP scenario. Analyze the new result.


LAB 3 LAN Riverbed Experiments

LAB 3 LAN IMPLEMENTATION

1. ObjectiveThe objective this lab is to show the basic designing of a LAN using subnet, users, switches and servers. There are two scenarios in the project.

1. Simple network with five different servers.2. One server containing all applications which are running on five different

servers.

Fig. 1 Network Overview

2. Local Area NetworkLocal area network (LAN) is a communication network that interconnects a variety of devices and provides a means for information exchange among those devices. The scope of a LAN is small, typically a single building or a cluster of buildings. It is usually the case LAN is owned by the same organization that owns the attached devices. Network management responsibility for a LAN falls solely on the user. The internal data rates of LANs are typically much greater than those of WANs.

3. Lab DescriptionScenario consists of 3 subnets connected with each other by switch using 100BaseT wire. First and Second Subnet belongs to IT and Finance Department respectively while third one is for server.

You may load in an existing LAN model to do this experiment. Then you can skip step 1 to 18 in the following section. However, you are expected to investigate the performance of the LAN.

4. Creating Network (You can open an existing project)1. Start RIVERBED MODELER and create a new project. File New and

chose a Project.2. Name the Project <your name>_Enterprise and Scenario name

Simple_Network and Click OK.3. Select Create Empty Scenario and click Next.



4. Select Office and click Next.5. Select metre and X Span to 100 and Y Span to 100 then click Next.6. Do not include any Technologies and press Next.7. Review the values and press OK.8. Now from Object Palette (internet toolbox) select Subnet and

press it three times in Grid on different place and rename them as Fig.1. 9. Place Application Config and Profile Config from the Object Palette into

the Grid.10. To Configure Application Config, Right Click on it Edit Attribute

Application Definition and select 5 rows then configure each row as written below Row 0 Database Access (Heavy)

Description Database High Load

Row 1 Email ( Heavy)Description Email High Load

Row 2 File Transfer (Heavy)Description FTP High Load

Row 3 Web Browsing (Heavy)Description HTTP Heavy Browsing

Row 4 Telnet Session (Heavy)Description Remote Login High Load

11. To configure Profile Config, Right Click on it Edit Attribute Profile Configuration and select 5 rows then configure each row shown in Fig 2.

12. Now rename subnet to IT, Finance and Server and then double click on IT, you are now in the IT subnet. Change the object palette to Ethernet. Here you place two ethernet_wkstn and one ethernet32_switch and connect them by 10BaseT wire and rename workstations to IT_1 and IT_2 as in Fig 3.

13. Now return to higher level by pressing button. Similarly you configure the Finance subnet but rename workstations to Finance_1 and Finance_2 as in Fig 4. And again return to higher level.

14. In the Server subnet, place 5 ethernet_server and one ethernet32_switch, connect each server to the switch by 100BaseT.



15. Rename each server as Fig. 5.

Fig.2 Profile Config

Fig. 3 Subnet IT

Fig. 4 Subnet Finance

Fig. 5 Server Subnet

Fig. 6 Application Supported Services Table



16. Configure each server to its specific application, Right Click on Database Server Edit Attribute Application: Supported Services Edit and define 1 row and configure Database Server as shown in Fig.6. Similarly configure each server to its specific services and return to higher level.

17. Place one ethernet32_switch here and connect each subnet by using 100BaseT connection as shown Fig. 1 (connect to switches in each subnet). Rename this switch to Main.

18. Save the Project.Second Scenario

19. Duplicate the Scenario, form Menu Bar Scenario Duplicate Scenario and named it One_Server.

20. Double click on Server subnet and delete 4 servers. Left only one server as show in Fig.7.

Fig .7 One Server Scenario Fig 8 Application Supported Services for One_Server

21. Configure all services in that server, Right Click on Server Edit Attributes Application: Supported Services Edit and now select 5 rows because you have 5 different services running & configure them as shown in Fig. 8.

22. Save the Project.

5. Choose StatisticsFor testing network performance select those statistics shown in Fig. 9. Right Click on the Grid any free area Choose Individual Statistics and click OK.

6. Configuring/Run SimulationFor running both scenarios concurrently, Scenarios Manage Scenarios, it will open a dialogue box. Firstly you have to configure simulation as shown in Fig. 10. In Results column choose collect or recollect option, Sim duration set to 30 and Time Modules to minute(s) and press OK to run a simulation.



Fig. 9 Choose Results Fig. 10 Manage Scenarios

7. Result AnalysisOnce the simulation is over, to view and analyze the results:

1. Right click on the Grid and Select Compare Results.2. Change As ls to time_average from bottom right part of Compare Results box.3. To view & analyze result unfold DB Query, HTTP, Email, FTP and Remote

Login for Response time respectively.8. Question & AnswerQ1) Compare the DB Query Response Time (Sec) in each scenario. Can you see any effect on network?Q2) Compare Email and FTP Download Response Time (Sec) in each scenario. Can you see any difference?Q3) Compare HTTP Page and Remote Login Response Time (Sec) in each scenario. Can you see any difference?


LAB 4 WAN Implementation Riverbed Experiments

LAB 4 WAN IMPLEMENTATION1. ObjectiveThe objective of designing this lab is to show the WAN implementation. XYZ company branches are in Glasgow and Manchester while head office is in London, all the servers running in head office. The goal is to show network performance is affected by background traffic. There are two scenarios in the project.

1. To show network performance without background traffic.2. To show network performance with background traffic.

2. Wide Area Network

Large geographical area is usually covered by wide area network (WAN), requires the crossing of public right-of-ways. Usually, WAN consist of a number

Fig. 1 Network Overviewof interconnected switching nodes. Internal nodes routed the transmission from any one device to its exact destination. Internal nodes are not concerned with the content of the data. Their actual functionality is to offer a switching facility that will shift the data from one to another node until they reach their destination.

3. Lab DescriptionScenario consists of 3 offices each has CS_4500_3s_e6_sl4_tr2_adv for connection to each other by using PPP_DS1 link. First and Second Subnet belongs to Glasgow and Manchester office respectively while third one is for London. Branches consist of 10BaseT_LAN connected to router using 10BaseT link. There are 4 servers running in London office and they connected to ethernet16_switch by using 100BaseT link. It also consists of 10BaseT_LAN connected to router using 10BaseT link.

4. Creating Network1. Start RIVERBED MODELER and create a new project. File New and chose a

Project.2. Name the Project <name>_WAN and Scenario name No_Traffic and Click OK.3. Select Create Empty Scenario and click Next.4. Select World and click Next.5. Select UK from the map list and click Next.6. Do not include any Technologies and press Next.7. Review the values and press OK.8. Now form Object Palette: (internet_toolbox) select Subnet and press it three

times in Grid on Glasgow, London and Manchester as shown in Fig. 1.



9. Place Application Config and Profile Config from the Object Palette into the Grid.

10. To Configure Application Config, Right Click on it Edit Attribute Application Definition and select 4 rows then configure each row as written below

Row 0 Database Access (Heavy)Description Database High Load

Row 1 Email ( Heavy)Description Email High Load

Row 2 File Transfer (Heavy)Description FTP High Load

Row 3 Web Browsing (Heavy)Description HTTP High Load

11. To configure Profile Config, Right Click on it Edit Attribute Profile Configuration and select 4 rows then configure each row as Fig. 2 of Lab 2.(Hint: configure same as in Lab 3 but not configure Remote Login)

12. Now rename subnet to Glasgow, London and Manchester and then double click on Glasgow. You are now in the subnet. Here you place 10BaseT_LAN (from LANs) and one CS_4500_3s_e6_sl4_tr2_adv (from Cisco, chose CS 4500, then edit its attributes, double click on it model to set as in Fig.5 ) and connect both systems by 10BaseT wire and rename Glasgow Office and Glasgow Router as in Fig. 2. Similarly you have to configure the Manchester subnet as shown in Fig. 3 .

Fig.2 Glasgow subnet Fig. 3 Manchester Subnet

13. In the London subnet, place 4 ethernet_server, one ethernet16_switch (from Ethernet), and one CS_4500_3s_e6_sl4_tr2_adv (from Cisco Object Palette). Connect each Server to Switch and switch to router by using 100BaseT.



Fig. 4 London NetworkFig.5 Changing Model

14. Rename the entire network for London office as shown in Fig. 4.15. Configure each server to its specific application, Right Click on Database Server

Edit Attribute Application: Supported Services Edit and define 1 row and configure Database Server as shown in Fig.6. in Lab 3. Similarly configure each server to its specific services and return to higher level.

16. For configuring LAN of each office, Right Click on it Edit Attribute Set Number of Workstation to 100, and then define 4 rows for Application: Supported Profile and then configure each row as in Fig. 6 and press OK.

Fig. 6 Setting LAN Supported Profiles

17. Use PPP_DS1 link (in internet_toobox) connect 3 subnets’ Cisco router. Save the Project.

Second Scenario

18. Duplicate the Scenario, form Menu Bar Scenario Duplicate Scenario and named it Busy_Network.

19. Select all links in between three cities by pressing shift key. Right Click on any one Edit Attribute Background Utilization and configure it as shown in Fig.



7 and tick the box on the bottom left Apply Changes to Selected Objects and press OK you will see on the bottom left on the Project Editor there is a message which shows 3 Object has changed.

Fig.7 Setting Background Utilization

5. Choose StatisticsFor testing network performance select those statistics shown in Fig.9. of Lab 3 but not select the Remote Login because it’s not included in this Lab] Right Click on the Grid any where except any node Choose Individual Statistics and click OK.

6. Configuring/Run SimulationFor running both scenarios concurrently, Scenarios Manage Scenarios, it will open a dialogue box firstly you have to configure simulation as shown in Fig.8.

Fig 8 Manage Scenarios

In Results column choose collect or recollect option, Sim duration set to 5.0 and Time Modules to minute(s) and press OK to run a simulation.

7. Result AnalysisOnce the simulation is over, to view and analyze the results:

1. Right click on the Grid and Select Compare Results.2. Change As ls to time_average from bottom right part of Compare Results box.3. To view & analyze result unfold DB Query, HTTP, Email and FTP respectively.



8. Question

Q1) Compare the DB Query Response Time (Sec) and Email Response Time (Sec). Can you see any effect on network with or without background utilization?

Q2) Compare the FTP Download Response Time (Sec) and HTTP Page Response Time (Sec). Can you see any effect on network with or without background utilization?

Lab1 to Lab4 are designed to help you familiar to RIVERBED MODELER. Your coursework should write on an own designed network and performance analyses of the network.

Reference:

Network Simulation Experiments Manual, 2nd Edition, Emad Aboelela, Elsevier Inc. 2008

http://www.opnet.com/university_program/teaching_with_opnet/textbooks_and_materials/index


LAB 5 NETWORK DESIGN AND CONSTRUCTION Cisco Experiments

LAB 5 NETWORK DESIGN AND CONSTRUCTION

1. Introduction

Two 2811 routers and two 2960 switches can construct different networks.

Every group should design and construct your own network.

Following figure show an example outline of the network.

2. IP addressing and connections

hosts IP address

cable Note

LAN1 S1, PC0, PC1, R1-FE0/1

192.168.1.x 3 Straight-through (red, yellow and dark blue)

Short dark blue cables are used to connect Switches and routers

LAN2 S2, PC2, PC3, R2-FE0/1

192.168.3.x 3 Straight-through(green, purple and dark blue)

Coloured cables are used to connect switches to PCs.

LAN3 R1-FE0/0, R2-FE0/0

192.168.7.x 1 Cross-over(Gray with red head)

Cross-over cable is used to connect routers

Control PC0-USB, R1-console, R2-console

N/A 1 Console cable(Light Blue)

Console cable is used to connect the control PC to routers (in turns)

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3. Initial configurations

(i) Configure 4 PCs’ IP addresses. Don’t forget to set the default gateways for all PCs.(ii) Making all connections

Use dark blue cable to connect Switch-1(S1) to Router-1(R1) FE 0/1. Use dark blue cable to connect Switch-2(S2) to Router-2(R2) FE 0/1. Use cross-over cable (Gray with red head) to connect R1 FE 0/0 and R2 FE 0/0. Use red and yellow cables to connect PC0 and PC1 to S1. Use green and purple cable to connect PC2 and PC3 to S2. Connect PC0-USB to R1-console port with the light blue control cable. Make sure the CF cards are inserted in R1 and R2 CF ports.

(iii) Check the COM number of the USB port you used. (in this graph, it’s COM18)

(iv) Configure Hyper Terminal



(v) Configure R1

Switch on the R1 router, you will see messages on the hyper terminal window. Wait for 2 minutes until “%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et0/1, changed state to down”shown. Press return then input the username: lsbu and password: lsbuCNAT.

R3# enable

R3#config terminal



R3(config)#hostname R1 ----this should be R2 when configuring Router-2

R1(config)#interface FastEthernet 0/0

R1(config-if)#ip address 192.168.7.1 255.255.255.0 --- 192.168.7.2 for R2

R1(config-if)#no shutdown

R1(config-if)#exit

R1(config)#interface FastEthernet 0/1

R1(config-if)#ip address 192.168.1.1 255.255.255.0 ---- 192.168.3.1 for R2

R1(config-if)#no shutdown

R1(config-if)#exit

(vi) Try ping command between 4 PCs and routers.Double click Command Prompt from the desktop and ping to all other IP addresses.

what’s your observations?

R1(config)#router rip

#version 2

#network 192.168.7.0 ----192.168.7.0 for R2

#network 192.168.1.0 ---192.168.3.0 for R2

#exit

Try ping between PCs again. What are your observations?

Change all PCs IP address setting to “obtain IP address automatically”.

#ip dhcp excluded-address 192.168.1.1 ---192.168.3.1 for R2



#ip dhcp excluded-address 192.168.1.30 192.168.1.254 ---192.168.3.30 192.168.3.254

#ip dhcp pool lan1 --- ip dhcp pool lan2

#network 192.168.1.0 255.255.255.0 ---192.168.3.0

#domain-name lan1test.inc

#default-router 192.168.1.1 ---192.168.3.1

#dns-server 192.168.1.4

#exit

#exit

(All above commands can be edited and saved as a text file on your own USB driver for each router individually. You can then transfer this file to the router when initial configuration via hyper terminal.)

(vii) Configure R2

Move the light blue control cable from R1 to R2console port. Switch on R2. Configure R2 (note IP addresses are different from R1).

Try ping between PCs again. What are your observations?

(viii) Try FTP and HTTP applications between 4 PCs.

Run xampp on your desktop. Ensure Apache and FileZilla are started.



Check the IP address of your main PC.

From other 3 PCs, open Internet Explorer, type in the http://IP address/ndi (in my example is http://192.168.1.6/ndi). What have you seen?

Follow the instruction on the screen to download file and measure the transfer times.

Optional:You may try more applications on the network you constructed.

Try connecting another PC into your network. streamed Video routing protocol TFTP server

More complicated network may be constructed between two groups.


Lab 6. Services Provided on Network Cisco Experiments

LAB 6. SERVICES PROVIDED ON NETWORK

This experiment is based on a connected Cisco network and students are familiar to the principle of IP networking and IP addressing.

1. TASKS 1. Connecting PCs into an existing network2. Setup your own web page and publish notes on the page3. Setup FTP server on your network4. Wireless LAN extension of an existing network5. Network cameras configuration and control

2. EXISTING NETWORK

3. PROCEDURES1. Connect one (or more) PC(s) into the existing network

Connect PC4 to Swich1 by another network cable. Do you need to set the set the IP address, subnet mask and default gateway? After 2 minutes of the connecting, Check what is PC4’s IP address?

Disconnect PC4 from Switch1 and then connect it to Switch2. After 2 minutes of the connecting, Check what is PC4’s IP address? Explain the reason why they are diffident.



2. Setup your own website server. Choose any PC as your web server of your network. Find out the IP address of your server. (e.g. 192.168.m.n) Use MS Word to edit a simple file then save it as index.htm into the folder of

C:/xampp/hddocs/test. If the system prompts warning, just overwrite the old file.

Run xampp on the server’s desktop. Ensure Apache is started.

From all other PCs, open Internet Explorer, type in the http://192.168.m.n/test. What have you seen?

At the server PC, use MS Word to open the file of index.htm in the folder of c:/xampp/htdocs/test. Edit to add more messages and save it.

From all other PCs, refresh (F5) the Internet Explorer, which the address bar with http://192.168.m.n/test. What have you seen?

3. Setup your FTP server to allow your clients to download and upload files from/to the server.

Choose one PC as your FTP server of your network.



Find out the IP address of your server. (e.g. 192.168.m.n)

Run xampp on your server’s desktop. Ensure Filezilla are started.

Every member of the group now should choose to work on different PCs on your network (avoid to use the PC used as the server).

Run Filezilla client software from your PC desktop and connect to your FTP server with following information.Host: 192.168.m.n Username: lab Password: lab port: 21Then click on the Quickconnect button.

Try to download a file (e.g. NDI module guide) on the FTP server to your PC and save it on the desktop. Open it.

Edit a word file with the contents of your full name then save it on your own folder/USB driver. Give the file name as your surname.

Try to upload this file to the FTP server. Any problems? Disconnect to the server and re-connect to the server with

Host: same as before Username: link Password: link Port: 21Upload your file to the FTP server. Any problems?

Check server’s FTP upload folder at c:/xampp/htdocs/uploadWhat files you found in this folder?(Hint: lab has been predefined as download only. Link has been predefined as upload and download.)

From the FTP server, click on the admin to show admin console. Add a new user with your own name and own password in the group of staff (read/write/delete). Set the home folder as c:/xampp/hddocs/upload

Login the FTP server from other PCs with your own created user try upload, download and delete the file which you just uploaded. (Don’t delete any other files)



From other PCs login the FTP server with your own created user. Try upload, download and delete a file. (Only delete your own uploaded files)

4. Extend wired network to a Wireless LAN. Connect a Cisco WAP121 (Wireless-N Access Point) to one of Cisco Switches of

your network via network cables, respectively. Use your mobile devices (smartphone/laptop/tablet) to scan Wi-Fi networks. You will

find one of SSID: ciscoT714 or ciscoT718, which built by you. Connect your smartphone/laptop/tablet to one of the WI-Fi network (ciscoT714 or

ciscoT718), no password needed. You mobile device should be able to access your local network (no the internet).

Access your own website from your mobile device. (Ensure xampp server is running.)Type 192.168.m.n/test in the address bar of Internet Browser (or any other browsers) on your mobile devices. What have you seen?



5. Connect IP camera on the network to combine CCTV with LAN Connect IP cameras on two switches by network cables respectively. Run IP Camera eyespy247 Setup to get their IP addresses. Note: the software MUST be

run on the PC within the same LAN of the camera.

Use the internet browser to login the camera. Type the camera’s IP address in the address bar of the browser.

You should be able to view the video by click on the Video on the top of page. Open a new tab from the browser, type another camera’s IP address in the address bar of

the new tab. Can you view both cameras’ videos? Try it on other PCs connect to your network.

Connect IP cameras on the network via Wi-Fi. Switch off the power buttons of cameras. Disconnect the cables connecting the cameras to switches. Switch on the power buttons of cameras. Wait until the network LED turned on. Use the camera software to get their IP addresses. Note: the software MUST be run on the

PC within the same LAN of the camera. Use the internet browser on any PC to login and control cameras by type the IP addresses

of cameras. Connect your mobile devices (laptop/smartphone/tablet) to your Wi-Fi network (e.g.

ciscoT714 or ciscoT718). No password needed. Use your mobile devices to access and control cameras. (Open an browser on your mobile

devices. Type the camera’s IP address in the address bar of the browser.) What’s your finding?

6. Draw the network diagram of the network you finally implemented.


LAB 7. IP TELEPHONY Cisco Experiments

LAB 7. IP TELEPHONYThis experiment is based on a connected Cisco network and students are familiar to the principle of IP networking and IP addressing.

1. Aims

Providing telephone services over Cisco networks2. Tasks

1. Self-Learn principles and protocols of Voice Over IP (VOIP)2. Construct a simple Cisco network3. Install 3CX software PBX into the server4. IP phone Provisioning5. Connect your mobile soft phone into the IP telephone system.6. Test and monitor your IP telephony system

3. Procedures

1. Self-Learn principles and protocols of Voice Over IP (VOIP) What is VOIP? What is IP telephony? Compare between IP telephony vs.

Public Switched Telephone Network (PSTN). What is a Private Branch Exchange (PBX) in a telephone system? What is SIP protocol? How it works? What is the function of SIP server or

software PBX?

2. Construct a simple Cisco network. Use one Cisco 2811 router, Cisco 3560 POE switch and 2 PCs to construct a

simple network for a small business as shown below. (Hint: configure one router as before)

Use ping or website server to check the network has been correctly connected.

3. Install 3CX software PBX into the server. Choose any one PC on the Cisco network as the SIP server.



Install 3CXPhoneSystem11 into the PC. Click on on the desktop to install 3CX server. Choose Next at every step before you see Finish.Then you need to config the software before you can use it.

When you click on the Finish, then you will be guided into 3CX User Settings Wizard.

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Leave blank

adminadmin

41


Repeat to add extension numbers until 107, then Next>, choose United Kingdom(+44).


Make a note of the Voicemail PIN of each extension, change the Authentication

Password to the same as ext num.

42


Finish the installation and setting of the 3CX Server.

4. IP phone Provisioning Connect Yealink IP phones to the Cisco 3560 POE switch on your network. If

you connect IP phone to a non-POE Switch (Cisco 2960) you need an adaptor to power the IP phone.

Log into the 3CX Management Console. User name: admin, Password: admin


Password: admin

43


Go to the Phones node Your Yealink IP phones will appear at the top of the list in bold, as long as you’ve

plugged it into the same LAN.

Right click on your Yealink IP phone. You’re given the following two options:“Add Extension” – this will create a new extension“Assign to Existing Extension” – this will assign an existing extension

Choose “Assign to existing extension” and choose 101 and click OK You’ll be taken to the “Edit Extension” settings page Click Apply then OK and you have done 3CX Phone System will send a provisioning link to your Yealink phone. Once the

link has been sent, you’ll notice that your phone will reboot and apply the configuration.

This procedure may take 2 minutes.If a IP phone has been successfully provisioned an extension number, you may check by click the “Extension Status” note.


Note: each IP phone has been assigned an IP address.

Click Phones, all connected IP phones should be listed

44


Repeat until all IP phones have been assigned to different extension numbers. All information could be found in the console’s Phones and Extension Status notes.

Choose a PC on the network. Click to run 3CX soft IP phone. Click Auto Provision. On the management console, you will find 3CXPhone for

Windows on the Phone list. Assign it to an unused extension number.


Green Register Extension means the IP phone has been correctly assigned and ready to use. The phone will display it’s own ext. num.

45


If it is correctly privileged, the soft phone will show information as below.

5. Connect your mobile soft phone into the IP telephone system. Download an appropriate version 3CXPhone for Phone System v11 on your mobile

device (Windows/Android/IPhone). http://www.3cx.com/3cxphone/ Expand your Cisco network to WiFi enabled by connecting a WiFi Access Point.


3CX soft phone

Connected to the network and ready to use

Ext. num provileged

46

http://www.3cx.com/3cxphone/


Connect your mobile device into your Cisco network and check it is correctly connected.

Run your 3CX soft phone on your mobile device and privilege it at the console as before.

6. Test and monitor your IP telephony system Make a one-to-one call between Yealink phones. You can monitor from the

management console.

Make two/three calls simultaneously.

Try voicemail function Try conference function



Appendix:If an IP phone/soft phone cannot be automatic privileged, it can be manually privilege.

After 2 minutes, the phone should be ready to use.


2. Click to login Phone’s config Rom.1. Choose 1 phone which not privileged.

Set as the IP of the server

set as one of the ext. num setting

48

LAB 8. PACKET TRACER TUTORIAL MATERIALS

LAB 8. PACKET TRACER TUTORIAL MATERIALSNext stage of the work is individual work on Packet Tracer software simulation of an extended network from what you have constructed.

Lab 1. Learn to Use CISCO Packet TracerCisco Packet Tracer is a powerful network simulation program that allows students to experiment with network behaviour and ask “what if” questions.

Objectives

Develop an understanding of the basic functions of Packet Tracer. Create/model a simple Ethernet network using two hosts and a hub. Observe traffic behaviour on the network. Observe data flow of ARP broadcasts and pings.

Hint: To ensure that the instructions always remain visible during an activity, click the "Top" check box in the lower left-hand corner of this instruction window.

Step 1: Create a logical network diagram with two PCs and a hubThe bottom left-hand corner of the Packet Tracer screen displays nine icons that represent device categories or groups, such as Routers, Switches, or End Devices.

Moving the cursor over the device categories will show the name of the category in the box. To select a device, first select the device category. Once the device category is selected, the options within that category appear in the box next to the category listings. Select the device option that is required.



1. Select End Devices from the options in the bottom left-hand corner. Drag and drop two generic PCs onto the design area.

2. Select Hubs from the options in the bottom left-hand corner. Add a hub to the prototype network by dragging and dropping a generic hub onto the design area.

3. Select Connections from the bottom left-hand corner. Choose a Copper Straight-through cable type. Click the first host, PC0, and assign the cable to the FastEthernet connector. Click the hub, Hub0, and select a connection port, Port 0, to connect to PC0.

4. Repeat Step c for the second PC, PC1, to connect the PC to Port 1 on the hub. *There should be green dots at both ends of each cable connection. If not, check the cable type selected.

Step 2: Configure host names and IP addresses on the PCs1. Click PC0. A PC0 window will appear.

2. From the PC0 window, select the Config tab. Change the PC Display Name to PC-A. (An error message window will appear warning that changing the device name may affect scoring of the activity. Ignore this error message.) Select the FastEthernet tab on the left and add the IP address of 192.168.1.1 and subnet mask of255.255.255.0. Close the PC-A configuration window by selecting the x in the upper right-hand corner.

3. Click PC1.

4. Select the Config tab. Change the PC Display Name to PC-B. Select the FastEthernet tab on the left and add the IP address of 192.168.1.2 and subnet mask of 255.255.255.0. Close the PC-B configuration window.

Step 3: Observe the flow of data from PC-A to PC-B by creating network traffic

1. Switch to Simulation mode by selecting the tab that is partially hidden behind the Realtime tab in the bottom right-hand corner. The tab has the icon of a stopwatch on it.

2. Click the Edit Filters button in the Event List Filters area. Clicking the Edit Filters button will create a pop-up window. In the pop-up window, click the Show All/None box to deselect every filter. Select just the ARP and ICMP filters.



3. Select a Simple PDU by clicking the closed envelope on the right vertical toolbar. Move your cursor to the display area of your screen. Click PC-A to establish the source. Move your cursor to PC-B and click to establish the destination.

4. Notice that two envelopes are now positioned beside PC-A. One envelope is ICMP, while the other is ARP. The Event List in the Simulation Panel will identify exactly which envelope represents ICMP and which represents ARP.

5. Select Auto Capture / Play from the Play Controls area of the Simulation Panel. Below the Auto Capture / Play button is a horizontal bar, with a vertical button that controls the speed of the simulation. Dragging the button to the right will speed up the simulation, while dragging it to the left will slow down the simulation.

6. The animation will run until the message window No More Events appears. All requested events have been completed.

7. Choose the Reset Simulation button in the Simulation Panel. Notice that the ARP envelope is no longer present. This has reset the simulation but has not cleared any configuration changes or dynamic table entries, such as ARP table entries. The ARP request is not necessary to complete the ping command because PC-A already has the MAC address in the ARP table.

8. Choose the Capture / Forward button. The ICMP envelope will move from the source to the hub and stop. The Capture / Forward button allows you to run the simulation one step at a time. Continue selecting the Capture / Forward button until you complete the event.

9. Choose the Power Cycle Devices button on the bottom left, above the device icons.

10.An error message will appear asking you to confirm reset. Choose Yes. Now both the ICMP and ARP envelopes are present again.

11. Resetting the Network

Whenever you want to reset the network and begin the simulation again, perform the following tasks:

Click Delete in the PDU area.



Now, Power Cycle Devices and confirm the action.

Step 4: View ARP Tables on each PC1. Choose the Auto Capture / Play button to repopulate the ARP table on the PCs.

Click OK when the No More Events message appears.

2. Select the magnifying glass on the right vertical tool bar.

3. Click PC-A. The ARP table for PC-A will appear. Notice that PC-A does have an ARP entry for PC-B. View the ARP table for PC-B. Close all ARP table windows.

4. Click Select Tool on the right vertical tool bar. (This is the first icon present in the toolbar.)

5. Click PC-A and select the Desktop tab.

6. Select the Command Prompt and type the command arp -a and press enter to view the ARP table from the desktop view. Close the PC-A configuration window.

7. Examine the ARP table for PC-B.

8. Close the PC-B configuration window.


LAB 9. PROTOTYPING A SIMPLE NETWORK


Objectives

Prototype a network using Packet Tracer

Background

A client has requested that you set up a simple network with two PCs connected to a switch. Verify that the hardware, along with the given configurations, meet the requirements of the client.

Step 1: Set up the network topology

1. Add two PCs and a Cisco 2950T switch.

2. Using straight-through cables, connect PC0 to interface Fa0/1 on Switch0 and PC1 to interfaceFa0/2 on Switch0.

3. Configure PC0 using the Config tab in the PC0 configuration window:IP Address: 192.168.10.10Subnet Mask: 255.255.255.0

4. Configure PC1 using the Config tab in the PC1 configuration window:IP Address: 192.168.10.11Subnet Mask: 255.255.255.0



Step 2: Test connectivity from PC0 to PC1

Use the ping command to test connectivity.

1. Click PC0.

2. Choose the Desktop tab.

3. Choose Command Prompt.

4. Type ping 192.168.10.11 and press enter.

5. A successful ping indicates the network was configured correctly and the prototype validates the hardware and software configurations. A successful ping should resemble the below output:

PC>ping 192.168.10.11Pinging 192.168.10.11 with 32 bytes of data:

Reply from 192.168.10.11: bytes=32 time=170ms TTL=128Reply from 192.168.10.11: bytes=32 time=71ms TTL=128Reply from 192.168.10.11: bytes=32 time=70ms TTL=128Reply from 192.168.10.11: bytes=32 time=68ms TTL=128

Ping statistics for 192.168.10.11: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: Minimum = 68ms, Maximum = 170ms, Average = 94ms

6. Close the configuration window.

Step 3: use the ping command Test connectivity from PC1 to PC0

References: Cisco Academy materials.More information available at: http://ecce1.lsbu.ac.uk/cisco/


Other PT lab exercises:

OTHER PT LAB EXERCISES:

1. Observing Web Requests (open lab3.prk)2. Troubleshooting a Wireless Connection (open lab4.prk)3. Implementing an IP Addressing Scheme (open lab5.prk)4. Using the Cisco IOS Show Commands (open lab6.prk)

Note: to start Cisco IOS CLI, you need to click on Customer PC, Desktop, Terminal, ok. Press enter You will see ISPRouter>

5. Using the Cisco IOS Show Commands (open lab7.prk)6. Planning Network-based Firewalls (open lab8.prk)

References: Cisco Academy materials.More information available at: http://ecce1.lsbu.ac.uk/cisco/

7. Design a network with 4 subnets

Exercises 1Design a network diagram, using Packet tracer, with 4 subnets. Fill in the Network design table below before configuring the network devices:

1 routers, 2 switches, 1 hubs, 1 servers and 1 printers in each subnet, and 16 PCs. Use the main network address: 192.168.1.0.

Network Design Table

Network IP address: 192.168.1.0Class:Default Network Mask:Network Broadcast IP address:Subnet Mask:Subnet 1 IP address:Subnet 1 Broadcast address:Subnet 1 Range of IP addresses:Subnet 2 IP address:Subnet 2 Broadcast address:Subnet 2 Range of IP addresses:Subnet 3 IP address:Subnet 3 Broadcast address:Subnet 3 Range of IP addresses:Subnet 4 IP address:Subnet 4 Broadcast address:Subnet 4 Range of IP addresses:

Finally, use the simulation and realtime modes to test your network design.



Exercises 2

Design, draw and configure a network with 8 subnets (fill in the Network design table) using: 2 routers, 3 switches, 3 hubs, 2 servers and 2 printers in each subnet, and 12 PCs. Use the main network address: 64.0.0.0. Use the simulation mode by sending some messages at the same time between PCs, and notice how

messages collide if the network is not segmented using switches and routers. Determine the number of collision and broadcast domains. Write down all the details of this network design (network address, subnet mask, subnet addresses,

address range of each subnet, Network broadcast address, broadcast address in each subnet). Save your design as “lab5diagram1.pkt”, in your flash memory for future use.

8. Design of a complete Network and subnetworks

Exercise 1:

Design a network diagram, using Packet tracer, with 4 subnets. Fill in the Network design table below before configuring the network devices:

1 router, 4 switches, and 16 PCs. Use the main network address: 176.100.0.0.


Network IP address: 176.100.0.0Class: BDefault Network Mask: 255.255.0.0Network Broadcast IP address: 176.100.255.255Subnet Mask: 255.255.192.0Subnet 1 IP address: 176.100.0.0Subnet 1 Broadcast address: 176.100.63.255Subnet 1 Range of IP addresses: 176.100.0.1 to 176.100.63.254Subnet 2 IP address: 176.100.64.0Subnet 2 Broadcast address: 176.100.127.255Subnet 2 Range of IP addresses: 176.100.64.1 to 176.100.127.254Subnet 3 IP address: 176.100.128.0Subnet 3 Broadcast address: 176.100.191.255Subnet 3 Range of IP addresses: 176.100.128.1 to 176.100.191.254Subnet 4 IP address: 176.100.192.0Subnet 4 Broadcast address: 176.100.255.255Subnet 4 Range of IP addresses: 176.100.192.1 to 176.100.255.254

Configure the router and the various PCs with the appropriate parameters from above. Use the appropriate gateways in the PCs in order for the router to route the messages. Finally, use the simulation and realtime modes to test your network design. Save your design as “lab6diagram1.pkt”, in your flash memory for future use.



Exercise 2:Design a simulated network diagram, with 4 routers located in different parts of the world through the Internet. Fill in the Network design table below before configuring the network devices:

4 routers, 4 switches, and 12 PCs.


Riyadh RouterClass:Network IP AddressNetwork Broadcast IP address:IP Address Riyadh Router Port 1IP Address Riyadh Router Port 2IP Address PC 0 / GatewayIP Address PC 1 / GatewayIP Address PC 2 / Gateway

London RouterClass:Network IP AddressNetwork Broadcast IP address:IP Address London Router Port 1IP Address London Router Port 2IP Address PC 3 / GatewayIP Address PC 4 / GatewayIP Address PC 5 / Gateway

Paris RouterClass:Network IP Address



Network Broadcast IP address:IP Address Paris Router Port 1IP Address Paris Router Port 2IP Address PC 6 / GatewayIP Address PC 7 / GatewayIP Address PC 8 / Gateway

New York RouterClass:Network IP AddressNetwork Broadcast IP address:IP Address New York Router Port 1IP Address New York Router Port 2IP Address PC 9 / GatewayIP Address PC 10 / GatewayIP Address PC 11 / Gateway

Configure the routers, switches and the various PCs with the appropriate parameters and connections from table above.

Use the appropriate gateways in the PCs and routers for the messages to be routed. Finally, use the simulation and realtime modes to test your network design. Save your design as “lab6diagram2.pkt”, in your flash memory for future use.

Exercises 3

Design a network diagram, using Packet tracer, with 8 subnets. Fill in the Network design table below before configuring the network devices:

2 routers, 4 switches, and 16 PCs. Use a class C IP address for the network.






Network IP address:Class: CDefault Network Mask:Network Broadcast IP address:Subnet Mask:Subnet 1 IP address:Subnet 1 Broadcast address:Subnet 1 Range of IP addresses:Subnet 2 IP address:Subnet 2 Broadcast address:Subnet 2 Range of IP addresses:Subnet 3 IP address:Subnet 3 Broadcast address:Subnet 3 Range of IP addresses:Subnet 4 IP address:Subnet 4 Broadcast address:Subnet 4 Range of IP addresses:Subnet 5 IP address:Subnet 5 Broadcast address:Subnet 5 Range of IP addresses:Subnet 6 IP address:Subnet 6 Broadcast address:Subnet 6 Range of IP addresses:Subnet 7 IP address:Subnet 7 Broadcast address:Subnet 7 Range of IP addresses:Subnet 8 IP address:Subnet 8 Broadcast address:Subnet 8 Range of IP addresses:

Configure the router and the various PCs with the appropriate parameters from above. Use the appropriate gateways in the PCs in order for the router to route the messages. Finally, use the simulation and realtime modes to test your network design. Save your design in your flash memory for future use.

referencewww.mmenacer.info


http://www.mmenacer.info/

Technology

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