tailieunhanh - IP Addressing and Subnetting

Every IP address must be accompanied by a subnet mask. By now you should be able to look at an IP address and tell what class it is. Unfortunately your computer doesn’t think that way. For your computer to determine the network and subnet portion of an IP address it must “AND” the IP address with the subnet you take a single network such as and divide it into five smaller networks (, , , , ) the outside world still sees the network as , but the internal computers and routers see five smaller subnetworks. Each independent of the other. This can only. | XH11110 110 1010111 0110001110100 01111010001101 101 X 1011 X 1 00101010110011 11101010100010 1101001101010 1 001010010101010 01010100011001 101010010110 1010110001101 101010000101 10101001 01 and Subnetting Workbook Version IP Addressing 11111110 10010101 00011011 10000110 11010011 Student Name IP Address Classes Class A 1 - 127 Network 127 is reserved for loopback and internal testing Leading bit pattern 0 Network . Host . Host . Host Class B 128 - 191 Leading bit pattern 10 Network . Network . Host . Host Class C 192 - 223 Leading bit pattern 110 Network . Network . Network . Host Class D 224 - 239 Reserved for multicast Class E 240 - 255 Reserved for experimental used for research Private Address Space Class A to Class B to Class C to Default Subnet Masks Class A Class B Class C Produced by Robb Jones jonesr@ Frederick County Career Technology Center Cisco Networking Academy Frederick County Public Schools Frederick Maryland USA Special Thanks to Melvin Baker and Jim Dorsch for taking the time to check this workbook for errors and to everyone who has sent in suggestions to improve the series. Workbooks included in the series IP Addressing and Subnetting Workbooks ACLs - Access Lists Workbooks VLSM Variable-Length Subnet Mask IWorkbooks Inside Cover Binary To Decimal Conversion 128 64 32 16 8 4 2 1 Answers Scratch Area 1 0 0 1 0 0 1 0 146 128 64 16 32 . 2 16 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 119 146 4 2 1 1 1 0 0 0 1 0 1 119 1 1 1 1 0 1 1 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0 1 0 0 1 1 0 0 0 1 0 1 1 1 1 0 0 0 1 1 1 1 0 0 0 0 0 0 1 1 1 0 1 1 0 0 0 0 0 1 1 1 00011011 10101010 01101111 11111000 00100000 01010101 ______________ 00111110 ______________ 00000011 ______________ 11101101 ______________ 11000000