1、IP地址类型以及子网划分,Unique addressing allows communication between end stations. Path choice is based on destination address. ocation is represented by an address,Introduction to TCP/IP Addresses,172.18.0.2,172.18.0.1,172.17.0.2,172.17.0.1,172.16.0.2,172.16.0.1,SA,DA,HDR,DATA,10.13.0.0,192.168.1.0,10.13.0.
2、1,192.168.1.1,Class A: Class B: Class C: Class D: Multicast Class E: Research,IP Address Classes,8 Bits,8 Bits,8 Bits,8 Bits,IP Address Classes,1,Class A:,Bits:,0NNNNNNN,Host,Host,Host,8,9,16,17,24,25,32,Range (1-126),1,Class B:,Bits:,10NNNNNN,Network,Host,Host,8,9,16,17,24,25,32,Range (128-191),1,C
3、lass C:,Bits:,110NNNNN,Network,Network,Host,8,9,16,17,24,25,32,Range (192-223),1,Class D:,Bits:,1110MMMM,Multicast Group,Multicast Group,Multicast Group,8,9,16,17,24,25,32,Range (224-239),IP Address Classes Exercise Answers,Address,Class,Network,Host,10.2.1.1,128.63.2.100,201.222.5.64,192.6.141.2,13
4、0.113.64.16,256.241.201.10,A,B,C,C,B,Nonexistent,10.0.0.0,128.63.0.0,201.222.5.0,192.6.141.0,130.113.0.0,0.2.1.1,0.0.2.100,0.0.0.64,0.0.0.2,0.0.64.16,Subnet Mask,255,255,0,0,IP Address,Default Subnet Mask,8-Bit Subnet Mask,Network,Host,Network,Host,Network,Subnet,Host,Also written as “/16,” where 16
5、 represents the number of 1s in the mask,Also written as “/24,” where 24 represents the number of 1s in the mask,11111111,11111111,00000000,00000000,Subnet Mask Exercise Answers,Address,Subnet Mask,Class,Subnet,172.16.2.10,10.6.24.20,10.30.36.12,255.255.255.0,255.255.240.0,255.255.255.0,B,A,A,172.16
6、.2.0,10.6.16.0,10.30.36.0,Broadcast Addresses,172.16.1.0,172.16.2.0,172.16.3.0,172.16.4.0,172.16.3.255 (Directed Broadcast),255.255.255.255 (Local Network Broadcast),X,172.16.255.255 (All Subnets Broadcast),Addressing Summary Example,10101100,11111111,10101100,00010000,11111111,00010000,11111111,000
7、00010,10100000,11000000,10000000,00000010,10101100,00010000,00000010,10111111,10101100,00010000,00000010,10000001,10101100,00010000,00000010,10111110,Host,Mask,Subnet,Broadcast,Last,First,172.16.2.160,255.255.255.192,172.16.2.128,172.16.2.191,172.16.2.129,172.16.2.190,1,2,3,4,5,6,7,8,9,16,172,2,160,
8、IP Host Address: 172.16.2.121 Subnet Mask: 255.255.255.0,Subnet Address = 172.16.2.0 Host Addresses = 172.16.2.1172.16.2.254 Broadcast Address = 172.16.2.255 Eight Bits of Subnetting,Network,Subnet,Host,10101100,00010000,00000010,11111111,172.16.2.121:,255.255.255.0:,10101100,11111111,Subnet:,101011
9、00,00010000,00010000,11111111,00000010,00000010,11111111,01111001,00000000,00000000,Class B Subnet Example,Broadcast:,Network,11111000,IP Host Address: 192.168.5.121 Subnet Mask: 255.255.255.248,Network,Subnet,Host,192.168.5.121:,11000000,11111111,Subnet:,11000000,10101000,10101000,11111111,00000101
10、,00000101,11111111,01111001,01111000,255.255.255.248:,Class C Subnet Planning Example,Subnet Address = 192.168.5.120 Host Addresses = 192.168.5.121192.168.5.126 Broadcast Address = 192.168.5.127 Five Bits of Subnetting,Broadcast:,Network,Network,11000000,10101000,00000101,01111111,Broadcast Addresses Exercise Answers,153.50.6.127,Address,Class,Subnet,Broadcast,201.222.10.60,255.255.255.248,C,201.222.10.63,201.222.10.56,Subnet Mask,15.16.193.6,255.255.248.0,A,15.16.199.255,15.16.192.0,128.16.32.13,255.255.255.252,B,128.16.32.15,128.16.32.12,153.50.6.27,255.255.255.128,B,153.50.6.0,
