Essential Tools For Data Comm Engineers

Presented by:

Engr. Syed Abdul Basit Telecommunication Engineer Guest Speaker Session @ PAF-KIET Thursday, December 3, 2009

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Wireshark

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MRTG

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Packet Tracer

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NS3

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GNS3

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OPNET

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Boson Netsim

Prepared by: Engr. Syed Abdul Basit

Prepared by: Engr. Syed Abdul Basit

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Wireshark is a network packet/protocol analyzer. ◦ A network packet analyzer will try to capture network packets and display packet data details.

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The basic tool for observing the messages exchanged between executing protocol entities is called a packet sniffer.

Prepared by: Engr. Syed Abdul Basit

Prepared by: Engr. Syed Abdul Basit

Figure 1: Structure of a packet sniffer.

Prepared by: Engr. Syed Abdul Basit

 Step 1: Download and Install Wireshark http://www.wireshark.org/download.html

Step 2: Open the Wireshark. Step 3: Wireshark settings.

Step 4: Start capturing packets Step 5: Analyze the capture packets

Prepared by: Engr. Syed Abdul Basit

Figure 2: Wireshark Window

Preferences

Your Name

Figure 3: Wireshark Preferences Setting

Check your IP Address

Options

Interface List

Figure 4: Wireshark Capture Settings

Figure 5: Wireshark GUI

Figure 6: HTTP Message

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Network Administrators

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Network Security Engineers

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Developers

◦ troubleshoot network problems ◦ examine security problems

◦ debug protocol implementations

Wireshark Demo

Prepared by: Engr. Syed Abdul Basit

 MRTG

is a tool to monitors and measures the traffic load on network links (web server, router).

 MRTG

generates HTML pages containing graphs which provide a LIVE visual representation of the traffic.

 Typically

collects data every five minutes.

Prepared by: Engr. Syed Abdul Basit

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MRTG uses the Simple Network Management Protocol (SNMP) to send requests.

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MRTG consists of a Perl script which uses SNMP to read the traffic counters of the routers.

Prepared by: Engr. Syed Abdul Basit

Prepared by: Engr. Syed Abdul Basit

Prepared by: Engr. Syed Abdul Basit

 Comprehensive

networking technology teaching and learning software with powerful simulation, visualization, assessment, and collaboration capabilities.

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To know more about:  http://www.cisco.com/web/learning/netacad/packet_tracer/packet_tracer_034_web.html

Prepared by: Engr. Syed Abdul Basit

simulate IOS commands

visualize network traffic

collaborate on multiuser activities

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Anyone can author, the PT Activity Wizard guides you.

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The process is basically write instructions, build a correct answer network, specify grading, specify an initial network, save.

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Ability to create your own learning activities, tasks, labs, games and complex assessments.

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Build learning experiences, formative and summative assessments. Prepared by: Engr. Syed Abdul Basit

Interface Overview

Create a Network

Network Simulation

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Logical & Physical Workspaces

Global event list (packet sniffer)

Real-Time and Simulation Modes

LAN, switching, TCP/IP, routing, and WAN protocols

Activity Wizard, Lab grading

User friendly CLI

Multiple platform support

Integrated Help and Tutorials

Prepared by: Engr. Syed Abdul Basit

PT 5.0 is now a network-capable (peer to peer) application, using the real network (TCP socket connections) to carry the Packet Tracer virtual packets.

The PT application running on one computer can communicate with the PT application running on 1 or more other computers. This connectivity between multiple instances of PT supports teamwork, classroom games, collaboration, competition, remote instructor-student interaction, and social networking.

Prepared by: Engr. Syed Abdul Basit

3 Packet Tracer instances interacting via Packet Tracer Messaging Protocol (PTMP)

Real TCP Socket Connection

PC 1

Real TCP Socket Connection

Real TCP Socket Connection

PC 2

PC 3

Prepared by: Engr. Syed Abdul Basit

Access the global instructor community for questions, discussions, collaboration, and activity sharing

Prepared by: Engr. Syed Abdul Basit

These are not listed on the PT Resource Page: 

PT Help Contents

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PT embedded Tutorials

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Performance Analysis ◦ OPNET

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Network Simulators ◦ ◦ ◦ ◦

Boson Netsim GNS3 NS-2 NS3

Prepared by: Engr. Syed Abdul Basit

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Wireshark

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MRTG

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OPNET

◦ http://www.wireshark.org/ ◦ http://wiki.wireshark.org ◦ http://wiki.wireshark.org/SampleCaptures

◦ http://www.mrtg.com/

◦ http://www.opnet.com/ 

Packet Tracer

◦ http://www.cisco.com/web/learning/netacad/course_catalog/PacketTracer.html

Prepared by: Engr. Syed Abdul Basit

Q& A

QUESTIONS AN SWE R S

Syed Abdul Basit +92 334 354 9727 [email protected]

Join me on Social Media http://xeesm.com/SyedAbdulBasit/