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Binary Lesson 5.5 Usable Addresses Class A, B, and C.

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Presentation on theme: "Binary Lesson 5.5 Usable Addresses Class A, B, and C."— Presentation transcript:

1 Binary Lesson 5.5 Usable Addresses Class A, B, and C

2 Slash Notation Consider a class A address of 1.2.3.4 Consider a class A address of 1.2.3.4 The network portion is the first octet The network portion is the first octet 1 This situation can be written This situation can be written 1.2.3.4/8 1.2.3.4/8 The number after the / is the number of bits in the network portion The number after the / is the number of bits in the network portion

3 Subnet Mask Consider a class A address of 1.2.3.4 /8 in binary Consider a class A address of 1.2.3.4 /8 in binary The subnet mask is 255.0.0.0 The subnet mask is 255.0.0.0 The network address is 1.0.0.0 The network address is 1.0.0.0 In Binary: In Binary: IP: 00000001 00000010 00000011 00000100 Subnt Msk: 11111111 00000000 00000000 00000000 Net Addr: 00000001 00000000 00000000 00000000

4 Network Address To find the network address, take a node's IP address and set all the host bits to 0 To find the network address, take a node's IP address and set all the host bits to 0 IP: 00000001 00000010 00000011 00000100 Subnt Msk: 11111111 00000000 00000000 00000000 NNNNNNNN HHHHHHHH HHHHHHHH HHHHHHHH NNNNNNNN HHHHHHHH HHHHHHHH HHHHHHHH Net Addr: 00000001 00000000 00000000 00000000 In decimal: In decimal: IP: 1 2 3 0 Subnt Msk: 255 0 0 0 Net Addr: 1 0 0 0

5 Broadcast Address To find the broadcast address, take a node's IP address and set all the host bits to 1 To find the broadcast address, take a node's IP address and set all the host bits to 1 IP: 00000001 00000010 00000011 00000100 Subnt Msk: 11111111 00000000 00000000 00000000 NNNNNNNN HHHHHHHH HHHHHHHH HHHHHHHH NNNNNNNN HHHHHHHH HHHHHHHH HHHHHHHH Brdc Addr: 00000001 11111111 11111111 11111111 In decimal: In decimal: IP: 1 2 3 0 Subnt Msk: 255 0 0 0 Brdc Addr: 1 255 255 255

6 Usable Addresses All the other addresses are usable--starting at network address + 1 and ending at broadcast address -1 All the other addresses are usable--starting at network address + 1 and ending at broadcast address -1 Network Addr: 1. 0. 0. 0 Subnet Mask: 255. 0. 0. 0 Broadcast Addr: 1.255.255.255 First Usable Addr: 1. 0. 0. 1 Last Usable Addr: 1.255.255.254

7 Class B Class B address: 147.144.1.212 /16 Class B address: 147.144.1.212 /16 The subnet mask is 255.255.0.0 The subnet mask is 255.255.0.0 The network address is 147.144.0.0 The network address is 147.144.0.0 The broadcast address is 147.144.255.255 The broadcast address is 147.144.255.255 In Binary: In Binary: IP: 10010011 10010000 00000001 11010100 Subnt Msk: 11111111 11111111 00000000 00000000 Net Addr: 10010011 10010000 00000000 00000000 Brdc Addr: 10010011 10010000 11111111 11111111

8 Class B Usable Addresses Class B address: 147.144.1.212 /16 Class B address: 147.144.1.212 /16 The subnet mask is 255.255.0.0 The subnet mask is 255.255.0.0 The network address is 147.144.0.0 The network address is 147.144.0.0 The broadcast address is 147.144.255.255 The broadcast address is 147.144.255.255 First usable address: 147.144.0.1 First usable address: 147.144.0.1 Last usable address: 147.144.255.254 Last usable address: 147.144.255.254

9 Class C Class C address: 192.168.1.10 /24 Class C address: 192.168.1.10 /24 The subnet mask is 255.255.255.0 The subnet mask is 255.255.255.0 The network address is 192.168.1.0 The network address is 192.168.1.0 The broadcast address is 192.168.1.255 The broadcast address is 192.168.1.255 In Binary: In Binary: IP: 11000000 10101000 00000001 00001010 Subnt Msk: 11111111 11111111 11111111 00000000 Net Addr: 11000000 10101000 00000001 00000000 Brdc Addr: 11000000 10101000 00000001 11111111

10 Usable Addresses Class A, B, and C iClicker Questions

11 What is the network address in this network? 15.254.222.199 /8 A.15.254.222.0 B.15.254.222.255 C.15.254.222.1 D.15.0.0.0 E.15.254.0.0 1 of 9

12 What is the broadcast address in this network? 10.20.30.40 /8 A.10.0.0.0 B.10.0.0.1 C.10.255.255.254 D.10.255.255.255 E.Something else 2 of 9

13 What is the first usable address for this network? 111.2.1.2 /8 A.111.0.0.1 B.111.2.0.1 C.111.2.1.1 D.111.2.255.255 E.Something else 3 of 9

14 What is the last usable address for this network? 19.144.1.212 /8 A.19.255.255.254 B.19.144.255.255 C.19.144.255.254 D.19.144.1.254 E.Something else 4 of 9

15 What is the first usable address for this network? 199.144.0.0 /24 A.199.0.0.1 B.199.144.0.1 C.199.144.1.1 D.199.144.1.255 E.Something else 5 of 9

16 What is the last usable address for this network? 222.0.14.0 /24 A.222.255.255.254 B.222.0.255.254 C.222.0.14.254 D.222.0.14.255 E.Something else 6 of 9

17 What is the last usable address for this network? 129.130.131.132 /16 A.129.130.131.254 B.129.130.255.254 C.129.255.255.254 D.129.130.0.1 E.Something else 7 of 9

18 What is the broadcast address for this network? 132.231.123.213 /16 A.132.231.123.254 B.132.231.123.255 C.132.231.255.255 D.132.255.255.254 E.Something else 8 of 9

19 What is the network address for this network? 200.0.14.128 /24 A.200.0.14.1 B.200.0.14.0 C.200.0.14.254 D.200.0.14.255 E.Something else 9 of 9

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