Www.kashifpaf.greatnow.com 1 Chapter 24 TCP/IP. www.kashifpaf.greatnow.com 2 An Internet According to TCP/IP.

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Presentation transcript:

1 Chapter 24 TCP/IP

2 An Internet According to TCP/IP

3 TCP/IP and the OSI Model

4 Internet Address The physical addresses (contained on NICs) that identify individual devices.

Addressing Internet Address Classful Addressing Supernetting Subnetting Classless Addressing Dynamic Address Configuration Network Address Translation

6 An IP address is a 32-bit address. Note:

7 The IP addresses are unique and universal. Note:

8 Internet Classes

9 Finding the address class

10 Classes a Class B b Class C c Class A d Class D e Class E

11 IP Addresses in Decimal Notation

12 Class Ranges of Internet Addresses

13 Find the netid and the hostid for each address: AddressClassNetidHostid

14 Find the network address for each address: Address Class

15 Example Find the class of each address: a b c Solution a.The first byte is 227 (between 224 and 239); the class is D. b.The first byte is 252 (between 240 and 255); the class is E. c.The first byte is 134 (between 128 and 191); the class is B.

16 Blocks in class A

17 Millions of class A addresses are wasted. Note:

18 Blocks in class B

19 Many class B addresses are wasted. Note:

20 The number of addresses in class C is smaller than the needs of most organizations. Note:

21 Blocks in class C