internet protocols n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Internet Protocols PowerPoint Presentation
Download Presentation
Internet Protocols

Loading in 2 Seconds...

play fullscreen
1 / 81

Internet Protocols - PowerPoint PPT Presentation


  • 119 Views
  • Uploaded on

Internet Protocols. Chapter III. Contents. TCP/IP and the DoD Model Protocol Header Layers IP Addressing Broadcast Address ICMP ARP IPv6. TCP/IP and the DoD Model. DoD Model Process/Application layer Host-to-Host layer Internet layer Network Access layer. Describe TCP/IP Model.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Internet Protocols


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Internet Protocols Chapter III

    2. Contents • TCP/IP and the DoD Model • Protocol Header Layers • IP Addressing • Broadcast Address • ICMP • ARP • IPv6

    3. TCP/IP and the DoD Model • DoD Model • Process/Application layer • Host-to-Host layer • Internet layer • Network Access layer

    4. Describe TCP/IP Model

    5. Explain protocol data units (PDU) and encapsulation

    6. Describe the process of sending and receiving messages

    7. Compare OSI and TCP/IP model

    8. Explain how labels in encapsulation headers are used to manage communication in data networks

    9. The TCP/IP protocol suite

    10. Telnet FTP TFTP NFS SMTP LPD X Window SNMP DNS DHCP/BootP The Process/Application Layer Protocols

    11. The Host-to-Host Layer Protocols • Transmission Control Protocol (TCP) • User Datagram Protocol (UDP)

    12. TCP Segment Format

    13. TCP header details (I) • source, destination port:16,16 - identify applications at ends of the connection • sequence:32 - indicates 1st data octet in this segment • acknowledgment:32 - next expected sequence number, valid only when the ACK bit (reside in flag) is set

    14. TCP header details (II) • data offset:4 - 32 bit words offset tells the receiver where user data begins • reserved:6 -not used • flag:6 • URG : validity of urgent pointer field • ACK : validity of acknowledge field • PSH : push request (pass segment to appl layer immediately) • RST : reset the connection • SYN : initial synchronization • FIN : sender at end of byte stream

    15. TCP header details (III) • window:16 - advertise amount of buffer space this node has allocated • checksum:16 - 16 bits 1’s complement of pseudo header, TCP header and data • urgent pointer:16 - byte position of data that should be processed first • options - variable length option e.g. MSS (max segment size) tells destination node

    16. UDP Segment Format

    17. UDP Header

    18. UDP pseudo Header

    19. Key Concepts of Host-to-Host Protocols

    20. Port numbers for TCP and UDP

    21. Key Protocols That Use TCP and UDP

    22. The Internet Layer Protocols • Internet Protocol (IP) • Internet Control Message Protocol (ICMP) • Address Resolution Protocol (ARP) • Reverse Address Resolution Protocol (RARP) • Proxy ARP

    23. IP header

    24. IP Header (I)

    25. IP Header (2)

    26. IP Header (3)

    27. The Protocol field in an IP header

    28. Possible Protocols Found in the Protocol Field of an IP Header

    29. Fragmentation

    30. Fragmentation Flag

    31. Fragmentation sample

    32. Problem in Fragmentation

    33. Avoiding Fragmentation

    34. Network Addressing • Network Address Range: Class A • 00000000 = 0 • 01111111 = 127 • Network Address Range: Class B • 10000000 = 128 • 10111111 = 191 • Network Address Range: Class C • 11000000 = 192 • 11011111 = 223

    35. Summary of the three classes of networks

    36. Broadcast Addresses • Layer 2 broadcasts These are sent to all nodes on a LAN. • Broadcasts (layer 3) These are sent to all nodes on the network. • Unicast These are sent to a single destination host. • Multicast These are packets sent from a single source, and transmitted to many devices on different networks.

    37. Layer 2 broadcasts • known as hardware broadcasts • they only go out on a LAN • The broadcast would be all 1s in binary and all Fs in hexadecimal, as in FF.FF.FF.FF.FF.FF.

    38. Broadcasts (layer 3) • Broadcast messages are meant to reach all hosts on a broadcast domain. • example that you’re already familiar with: The network address of 172.16.0.0 255.255.0.0 would have a broadcast address of 172.16.255.255 • Broadcasts can also be “all networks and all hosts,” as indicated by 255.255.255.255. • A good example of a broadcast message is an Address Resolution Protocol (ARP) request.

    39. Part II

    40. Internet Control Message Protocol (ICMP)

    41. ICMP Header

    42. ICMP Types

    43. ICMP Types, cont.

    44. ICMP type 0/8 echo reply/request

    45. ICMP type 3 destination unreachable

    46. ICMP type 4 source quench

    47. ICMP type 5 route change request

    48. Local ARP broadcast