module 1: reviewing the suite of tcp/ip protocols
TRANSCRIPT
Module 1: Reviewing the Suite of
TCP/IP Protocols
Overview
Overview of the OSI Model
Overview of the TCP/IP Protocol Suite
Viewing Frames Using Network Monitor
Lesson: Overview of the OSI Model
What Is the OSI Model?
The Layers of the OSI Model
What Is the OSI Model?
In the OSI model:
Each layer has a defined networking function
Each layer communicates with the layer above and below it
Layer seven provides services for programs to gain access to the network
Layers one and two define the network’s physical media and related tasks
ApplicationApplication
PresentationPresentation
SessionSession
TransportTransport
NetworkNetwork
Data-LinkData-Link
PhysicalPhysical
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Multimedia: The Layers of the OSI Model
ApplicationApplication
PresentationPresentation
SessionSession
TransportTransport
NetworkNetwork
Data-LinkData-Link
PhysicalPhysical
All
People
Seem
To
Need
Data
Processing
Practice: Putting the Layers of the OSI Model in Order
In this practice, you will put the layers of the OSI model in their correct order
Lesson: Overview of the TCP/IP Protocol Suite
Why Do I Need to Know About TCP/IP?
What Is the Architecture of the TCP/IP Protocol Suite?
How Does the TCP/IP Model Relate to the OSI Model?
How an IP Packet Moves Through the Suite of TCP/IP Protocols
Multimedia: Why Do I Need to Know About TCP/IP?
You need to understand the addressing scheme of your network to correctly configure client computers to access it using TCP/IP
You need to know the locations of the windows where you enter the TCP/IP information
You must be able to find the TCP/IP information that you use to configure client computers
What Is the Architecture of the TCP/IP Protocol Suite?
TransportTransport
InternetInternet
LinkLink
ApplicationApplication
EthernetFrame Relay
Token Ring ATM
HTTPHTTP FTPFTP SMTPSMTP DNSDNS RIPRIP SNMPSNMP
TCP/IP Protocol Suite
TCPTCP UDPUDP
IPIPARPARPIGMPIGMP ICMPICMP
TCP/IP Protocol SuiteTCP/IPOSI
How Does the TCP/IP Model Relate to the OSI Model?
TCPTCP UDPUDP
ARPARP IGMPIGMP ICMPICMPIP
EthernetEthernet Frame Relay
Frame Relay
Token Ring
Token Ring ATMATM
ApplicationApplication
TransportTransport
LinkLink
HTTPHTTP FTPFTP SMTPSMTP
DNSDNS RIPRIP SNMPSNMP
ApplicationApplication
TransportTransport
NetworkNetwork
Data-LinkData-Link
PresentationPresentation
SessionSession
PhysicalPhysical
InternetInternet
Multimedia: How an IP Packet Moves Through the Suite of TCP/IP Protocols
The Four Layers of the TCP/IP Protocol Suite:
Application
Transport
Internet
Link
Practice: Associating the Protocols and Layers of the TCP/IP Model
In this practice, you will associate the protocols and layers of the TCP/IP model
Lesson: Viewing Frames Using Network Monitor
What Is Ping?
What Is Network Monitor?
How to Capture Frames
How to Filter for Select Frames
Examining Captured Network Traffic
ServerServerClient ComputerClient Computer
You can run Ping from a client computer to test the connection to any host, such as a printer or a server:
The server sends an Echo Reply back to the client computer
The client computer sends an Echo Request to the server
You check the details of the Echo Reply to determine the quality of the connection
Pinging LONDON (192.168.2.10) with 32 bytes of data: Reply from 192.168.2.10: bytes=32 time<10ms TTL=128Reply from 192.168.2.10: bytes=32 time<10ms TTL=128Reply from 192.168.2.10: bytes=32 time<10ms TTL=128Reply from 192.168.2.10: bytes=32 time<10ms TTL=128 Ping statistics for 192.168.2.10:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = Oms, Maximum = Oms, Average = Oms
What Is Ping?
What Is Network Monitor?
Network Monitor:
Captures a sample of network traffic
Uses filters to select specific packets
Decodes the packets in the language of the individual protocols
Compiles network statistics
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Practice: Installing Network Monitor
In this practice, you will install Network Monitor
Your instructor will demonstrate how to use Network Monitor to capture framesYour instructor will demonstrate how to use Network Monitor to capture frames
How to Capture Frames
Practice: Capturing Frames
In this practice, you will use Network Monitor to capture frames
Your instructor will demonstrate how to filter for select framesYour instructor will demonstrate how to filter for select frames
How to Filter for Select Frames
Examining Captured Network Traffic
Practice: Examining Packets
In this practice, you will:
Examine ICMP Packets
Examine ARP Packets