1 TCP/IP introduction ผศ. ดร. อนันต์ ผลเพิ่ม Anan Phonphoem, Ph.D. Computer Engineering Department Kasetsart.

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Presentation transcript:

1 TCP/IP introduction ผศ. ดร. อนันต์ ผลเพิ่ม Anan Phonphoem, Ph.D. Computer Engineering Department Kasetsart University, Bangkok, Thailand

2 Outline TCP/IP Overview IP Address Subnet Design

3 An Internet according to TCP/IP

4 OSI Model and TCP/IP 7Application 6Presentation 5Session 4Transport 3Network 2Data Link 1Physical Applications TCP/ UDP IP Physical Data Link (Network) (Transport) (Internet)

5 TCP/IP Layering Concept Transmission Network Interface Network Application Applications End-to-end Services Transport Routing Internet Physical Network

6 TCP/IP Encapsulation Applications TCP/ UDP IP Physical Data Link Message User Datagram (segment) Datagram Frame Bits

7 Data Flow Hello HHello Applications TCP/ UDP IP Physical Data Link HHelloH2TH H

8 UDP Datagram format

9 TCP segment format

10 IP Datagram

11 Ethernet Frame CRC 4 bytes

12 Internet

13 Data Flow over the Internet SourceDestinationRouter Application TCP/IP IP Data Link Physical Application TCP/IP IP Data Link Physical IP Data Link Physical IP Data Link Physical

14 IP Datagram

15 Internet Address

16 Internet Classes Classful Addressing

17 Internet Classes Class A Class C D E Class B

18 IP address in decimal notation

19 Class ranges of Internet Address

20 Class A example

21 Class C example

22 Network Address

23 Sample internet Network and Host addresses

24 A Network with Two Levels of Hierarchy

25 A Network with Three Levels of Hierarchy

26 Addresses with and without Subnetting

27 Masking

28 Default Mask Clas s In Binary In Dotted- Decimal Using Slash A /8 B /16 C /24

29 Subnet Design Given a network with 16 hosts in each subnetwork Find the following: The number of subnetworks Sub-network ID / Broadcast Address Sub-netmask First/Last address that can be used for each subnet

30 Subnet Design Last Byte(Host ID) Class C IP address 16 Hosts  2 4 =16 is not enough (subnetID and broadcast)  2 5 = 32  total of 30 hosts  5 bits for Host and 3 bits for subnet HostSubnet

31 Subnet Design Subnet Mask = = = = = = = = 224 SubnetHost Subnet ID

32 Subnet Design SubnetSubnet ID1 st AddLast AddBroadcast