Essential Tools For Data Comm Engineers
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Transcript of Essential Tools For Data Comm Engineers
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Presented by:
Engr. Syed Abdul Basit
Telecommunication Engineer
Guest Speaker Session
@
PAF-KIET
Thursday, December 3, 2009
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Wireshark
MRTG
Packet Tracer
NS3
GNS3
OPNET
Boson Netsim
Prepared by: Engr. Syed Abdul Basit
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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.
The basic tool for observing the messages exchanged
between executing protocol entities is called a packet
sniffer.
Prepared by: Engr. Syed Abdul Basit
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Prepared by: Engr. Syed Abdul Basit
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Figure 1: Structure of a packet sniffer.
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Step 1: Download and Install Wiresharkhttp://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
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Figure 2: Wireshark Window
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Figure 3: Wireshark Preferences Setting
PreferencesYour Name
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Figure 4: Wireshark Capture Settings
Options
Interface List
Check your IP Address
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Figure 5: Wireshark GUI
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Figure 6: HTTP Message
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Network Administrators ◦ troubleshoot network problems
Network Security Engineers ◦ examine security problems
Developers ◦ debug protocol implementations
Wireshark Demo
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Prepared by: Engr. Syed Abdul Basit
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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.
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MRTG uses the Simple Network Management
Protocol (SNMP) to send requests.
MRTG consists of a Perl script which uses SNMP to
read the traffic counters of the routers.
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Prepared by: Engr. Syed Abdul Basit
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Comprehensive networking technology teaching and
learning software with powerful simulation,
visualization, assessment, and collaboration
capabilities.
To know more about: http://www.cisco.com/web/learning/netacad/packet_tracer/packet_tracer_03-
4_web.html
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collaborate on multiuser activities
simulate IOS commands
visualize network traffic
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Anyone can author, the PT Activity Wizard guides you.
The process is basically write instructions, build a correct answer network, specify grading, specify an initial network, save.
Ability to create your own learning activities, tasks, labs, games and complex assessments.
Build learning experiences, formative and summative assessments.
Prepared by: Engr. Syed Abdul Basit
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Interface Overview
Create a Network
Network Simulation
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Logical & Physical Workspaces
Real-Time and Simulation Modes
User friendly CLI
Global event list (packet sniffer)
LAN, switching, TCP/IP, routing,
and WAN protocols
Multiple platform support
Activity Wizard, Lab grading
Integrated Help and Tutorials
Prepared by: Engr. Syed Abdul Basit
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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
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Real TCP Socket Connection
Real TCP Socket Connection
Real TCP Socket Connection
PC 1 PC 2
PC 3
3 Packet Tracer instances interacting
via Packet Tracer Messaging Protocol (PTMP)
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Access the global instructor community for questions, discussions,
collaboration, and activity sharing
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These are not listed on the PT Resource Page:
PT Help Contents
PT embedded Tutorials
Prepared by: Engr. Syed Abdul Basit
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Performance Analysis
◦ OPNET
Network Simulators
◦ Boson Netsim
◦ GNS3
◦ NS-2
◦ NS3
Prepared by: Engr. Syed Abdul Basit
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Wireshark◦ http://www.wireshark.org/◦ http://wiki.wireshark.org◦ http://wiki.wireshark.org/SampleCaptures
MRTG◦ http://www.mrtg.com/
OPNET◦ http://www.opnet.com/
Packet Tracer◦ http://www.cisco.com/web/learning/netacad/course_catalog/PacketTracer.html
Prepared by: Engr. Syed Abdul Basit
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AQ&Q U E S T I O N S
A N S W E R S
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Syed Abdul Basit
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