11111110101010010001111100101110010101110010110001110100110111101000110100000101001011001010010101011001111111010101000101...
IP Address ClassesClass A 1 – 127 (Network 127 is reserved for loopback and internal testing)Leading bit pattern 0 0000000...
Binary To Decimal Conversion128 64 32 16 8 4 2 1 Answers Scratch Area1 0 0 1 0 0 1 0 1460 1 1 1 0 1 1 1 1191 1 1 1 1 1 1 1...
Decimal To Binary Conversion128 64 32 16 8 4 2 1 = 255 Scratch Area_________________________________________ 238__________...
Address Class IdentificationAddress Class10.250.1.1 _____150.10.15.0 _____192.14.2.0 _____148.17.9.1 _____193.42.1.1 _____...
Network & Host IdentificationCircle the network portionof these addresses:177.100.18.4119.18.45.0209.240.80.78199.155.77.5...
Default Subnet MasksWrite the correct default subnet mask for each of the following addresses:177.100.18.4 _______________...
ANDING WithDefault subnet masksEvery IP address must be accompanied by a subnet mask. By now you should be able to lookat ...
ANDING WithCustom subnet masksWhen you take a single network such as 192.100.10.0 and divide it into five smaller networks...
Custom Subnet MasksProblem 1Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefaul...
9Custom Subnet MasksProblem 2Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefau...
Custom Subnet MasksProblem 3Network AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber...
Custom Subnet MasksProblem 4Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefaul...
12Custom Subnet MasksProblem 5Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefa...
13Custom Subnet MasksProblem 6Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefa...
14Custom Subnet MasksProblem 7Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefa...
15Custom Subnet MasksProblem 8Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefa...
Custom Subnet MasksProblem 9Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefaul...
Custom Subnet MasksProblem 10Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet mas...
Custom Subnet MasksProblem 11Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet m...
Custom Subnet MasksProblem 12Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet m...
Custom Subnet MasksProblem 13Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet mas...
Custom Subnet MasksProblem 14Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet m...
Custom Subnet MasksProblem 15Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet mas...
Custom Subnet MasksProblem 16Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet mas...
__________________________________________________________________________________________________________________________...
Show your work for Problem 1 in the space below.192.10.10.0 to 192.10.10.15192.10.10.16 to 192.10.10.31192.10.10.32 to 192...
__________________________________________________________________________________________________________________________...
165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000...
__________________________________________________________________________________________________________________________...
Show your work for Problem 3 in the space below.29128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 162 4 8 162...
__________________________________________________________________________________________________________________________...
Show your work for Problem 4 in the space below.31
__________________________________________________________________________________________________________________________...
Show your work for Problem 5 in the space below.33
__________________________________________________________________________________________________________________________...
Show your work for Problem 6 in the space below.35
__________________________________________________________________________________________________________________________...
Show your work for Problem 7 in the space below.37
__________________________________________________________________________________________________________________________...
Show your work for Problem 8 in the space below.39
__________________________________________________________________________________________________________________________...
Show your work for Problem 9 in the space below.41
__________________________________________________________________________________________________________________________...
Show your work for Problem 10 in the space below.43
__________________________________________________________________________________________________________________________...
Show your work for Problem 11 in the space below.45
46SubnettingProblem 12Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal ...
Show your work for Problem 12 in the space below.47
__________________________________________________________________________________________________________________________...
Show your work for Problem 13 in the space below.49
__________________________________________________________________________________________________________________________...
Show your work for Problem 14 in the space below.51
__________________________________________________________________________________________________________________________...
Show your work for Problem 15 in the space below.53
Valid and Non-Valid IP AddressesUsing the material in this workbook identify which of the addresses below are correct andu...
Class A Addressing Guide# of BitsBorrowed2345678910111213141516171819202122SubnetMask255.192.0.0255.224.0.0255.240.0.0255....
Ip addressing   subnetting workbook
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Ip addressing subnetting workbook

  1. 1. 11111110101010010001111100101110010101110010110001110100110111101000110100000101001011001010010101011001111111010101000101110100110101001100101001010101010101010001100100101010010110001101011000110101101010000101100101010011010010100101001100011010011100001101001010100011011001IP AddressingandSubnettingWorkbookVersion 1.1
  2. 2. IP Address ClassesClass A 1 – 127 (Network 127 is reserved for loopback and internal testing)Leading bit pattern 0 00000000.00000000.00000000.00000000Class B 128 – 191 Leading bit pattern 10 10000000.00000000.00000000.00000000Class C 192 – 223 Leading bit pattern 110 11000000.00000000.00000000.00000000Class D 224 – 239 (Reserved for multicast)Class E 240 – 255 (Reserved for experimental, used for research)Private Address SpaceClass A 10.0.0.0 to 10.255.255.255Class B 172.16.0.0 to 172.31.255.255Class C 192.168.0.0 to 192.168.255.255Default Subnet MasksClass A 255.0.0.0Class B 255.255.0.0Class C 255.255.255.0Network . Host . Host . HostNetwork . Network . Host . HostNetwork . Network . Network . HostInside CoverProduced by: Robb Jonesjonesr@careertech.netFrederick County Career & Technology CenterCisco NetworkingAcademyFrederick County Public SchoolsFrederick, Maryland, USASpecial Thanks to Melvin Baker and Jim Dorschfor taking the time to check this workbook for errors.
  3. 3. Binary To Decimal Conversion128 64 32 16 8 4 2 1 Answers Scratch Area1 0 0 1 0 0 1 0 1460 1 1 1 0 1 1 1 1191 1 1 1 1 1 1 11 1 0 0 0 1 0 11 1 1 1 0 1 1 00 0 0 1 0 0 1 11 0 0 0 0 0 0 10 0 1 1 0 0 0 10 1 1 1 1 0 0 01 1 1 1 0 0 0 00 0 1 1 1 0 1 10 0 0 0 0 1 1 1000110111010101001101111111110000010000001010101001111100000001111101101110000001281621466432164211191
  4. 4. Decimal To Binary Conversion128 64 32 16 8 4 2 1 = 255 Scratch Area_________________________________________ 238_________________________________________ 34_________________________________________ 123_________________________________________ 50_________________________________________ 255_________________________________________ 200_________________________________________ 10_________________________________________ 138_________________________________________ 1_________________________________________ 13_________________________________________ 250_________________________________________ 107_________________________________________ 224_________________________________________ 114_________________________________________ 192_________________________________________ 172_________________________________________ 100_________________________________________ 119_________________________________________ 57_________________________________________ 98_________________________________________ 179_________________________________________ 2238-128110-6446-3214-86-42-201 1 1 0 1 1 1 0 34-322-200 0 1 0 0 0 1 0Use all 8 bits for each problem2
  5. 5. Address Class IdentificationAddress Class10.250.1.1 _____150.10.15.0 _____192.14.2.0 _____148.17.9.1 _____193.42.1.1 _____126.8.156.0 _____220.200.23.1 _____230.230.45.58 _____177.100.18.4 _____119.18.45.0 _____249.240.80.78 _____199.155.77.56 _____117.89.56.45 _____215.45.45.0 _____199.200.15.0 _____95.0.21.90 _____33.0.0.0 _____158.98.80.0 _____219.21.56.0 _____AB3
  6. 6. Network & Host IdentificationCircle the network portionof these addresses:177.100.18.4119.18.45.0209.240.80.78199.155.77.56117.89.56.45215.45.45.0192.200.15.095.0.21.9033.0.0.0158.98.80.0217.21.56.010.250.1.1150.10.15.0192.14.2.0148.17.9.1193.42.1.1126.8.156.0220.200.23.1Circle the host portion ofthese addresses:10.15.123.50171.2.199.31198.125.87.177223.250.200.22217.45.222.45126.201.54.231191.41.35.112155.25.169.227192.15.155.2123.102.45.254148.17.9.155100.25.1.1195.0.21.9825.250.135.46171.102.77.7755.250.5.5218.155.230.1410.250.1.14
  7. 7. Default Subnet MasksWrite the correct default subnet mask for each of the following addresses:177.100.18.4 _____________________________119.18.45.0 _____________________________191.249.234.191 _____________________________223.23.223.109 _____________________________10.10.250.1 _____________________________126.123.23.1 _____________________________223.69.230.250 _____________________________192.12.35.105 _____________________________77.251.200.51 _____________________________189.210.50.1 _____________________________88.45.65.35 _____________________________128.212.250.254 _____________________________193.100.77.83 _____________________________125.125.250.1 _____________________________1.1.10.50 _____________________________220.90.130.45 _____________________________134.125.34.9 _____________________________95.250.91.99 _____________________________255 . 255 . 0 . 0255 . 0 . 0 . 05
  8. 8. ANDING WithDefault subnet masksEvery IP address must be accompanied by a subnet mask. By now you should be able to lookat 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 mask.Default Subnet Masks:Class A 255.0.0.0Class B 255.255.0.0Class C 255.255.255.0ANDING Equations:1 AND 1 = 11 AND 0 = 00 AND 1 = 00 AND 0 = 0Sample:What you see...IPAddress: 192 . 100 . 10 . 33What you can figure out in your head...Address Class: CNetwork Portion: 192 . 100 . 10 . 33Host Portion: 192 . 100 . 10 . 33In order for you computer to get the same information it mustAND the IP address withthe subnet mask in binary.ANDING with the default subnet mask allows your computer to figure out the networkportion of the address.1 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 11 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 . 0 0 0 0 0 0 0 01 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 0 0 0 0 0 0(255 . 255 . 255 . 0)(192 . 100 . 10 . 33)(192 . 100 . 10 . 0)Network HostIP Address:Default Subnet Mask:AND:6
  9. 9. ANDING WithCustom subnet masksWhen you take a single network such as 192.100.10.0 and divide it into five smaller networks(192.100.10.16, 192.100.10.32, 192.100.10.48, 192.100.10.64, 192.100.10.80) the outsideworld still sees the network as 192.100.10.0, but the internal computers and routers see fivesmaller subnetworks. Each independent of the other. This can only be accomplished by usinga custom subnet mask. Acustom subnet mask borrows bits from the host portion of theaddress to create a subnetwork address between the network and host portions of an IPaddress. In this example each range has 14 usable addresses in it. The computer must stillAND the IP address against the custom subnet mask to see what the network portion is andwhich subnetwork it belongs to.IPAddress: 192 . 100 . 10 . 0Custom Subnet Mask: 255.255.255.240Address Ranges: 192.10.10.0 to 192.100.10.15 (Invalid Range)192.100.10.16 to 192.100.10.31 (1st Usable Range)192.100.10.32 to 192.100.10.47 (Range in the sample below)192.100.10.48 to 192.100.10.63192.100.10.64 to 192.100.10.79192.100.10.80 to 192.100.10.95192.100.10.96 to 192.100.10.111192.100.10.112 to 192.100.10.127192.100.10.128 to 192.100.10.143192.100.10.144 to 192.100.10.159192.100.10.160 to 192.100.10.175192.100.10.176 to 192.100.10.191192.100.10.192 to 192.100.10.207192.100.10.208 to 192.100.10.223192.100.10.224 to 192.100.10.239192.100.10.240 to 192.100.10.255 (Invalid Range)In the next set of problems you will determine the necessary information to determine thecorrect subnet mask for a variety of IP addresses.1 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 11 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 . 1 1 1 1 0 0 0 01 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 0(255 . 255 . 255 . 240)(192 . 100 . 10 . 33)(192 . 100 . 10 . 32)Four bits borrowed from the hostportion of the address for thecustom subnet mask.TheANDING process of the four borrowed bitsshows which range of IP addresses thisparticular address will fall into.SubNetwork HostNetworkIPAddress:Custom Subnet Mask:AND:7
  10. 10. Custom Subnet MasksProblem 1Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed1414192.10.10.0_______________________________________________________________________________________________________________________________________________________________________192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 16 32 64 128 256Number of256 128 64 32 16 8 4 2 - HostsShow your work for Problem 1 in the space below.Add the binary valuenumbers to the left of the line tocreate the custom subnet mask.16-214C255 . 255 . 255 . 0255 . 255 . 255 . 240161416144Observe the total number ofhosts.Subtract 2 for the number ofusable hosts.16-2148Subtract 2 for the total number ofsubnets to get the usable number ofsubnets.1286432+16240
  11. 11. 9Custom Subnet MasksProblem 2Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed100060165.100.0.0_______________________________________________________________________________________________________________________________________________________________________165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1Number ofSubnets - 2 4 8 16 32 64 128 256.. 256 128 64 32 16 8 4 2Show your work for Problem 2 in the space below.Add the binary valuenumbers to the left of the line tocreate the custom subnet mask.1024-21,022B255 . 255 . 0 . 0255 . 255 . 255 . 1921,0241,022646210Observe the total number ofhosts.Subtract 2 for the number ofusable hosts.64-262Subtract 2 for the total number ofsubnets to get the usable number ofsubnets.128643216842+1255128 64 32 16 8 4 2 1 .....512Binary values -Number ofHosts -128+64192102420484,0968,19216,38432,76865,5365121,0242,0484,0968,19216,38432,76865,536
  12. 12. Custom Subnet MasksProblem 3Network AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed148.75.0.0 /26_______________________________________________________________________________________________________________________________________________________________________Show your work for Problem 3 in the space below.B255 . 255 . 0 . 0255 . 255 . 255 . 1921,0241,022646210/26 indicates the total number ofbits used for the network andsubnetwork portion of theaddress. All bits remaining belongto the host portion of the address.148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1Number ofSubnets - 2 4 8 16 32 64 128 256.. 256 128 64 32 16 8 4 2Add the binary valuenumbers to the left of the line tocreate the custom subnet mask.1024-21,022Observe the total number ofhosts.Subtract 2 for the number ofusable hosts.64-262Subtract 2 for the total number ofsubnets to get the usable number ofsubnets.128643216842+1255128 64 32 16 8 4 2 1 .....512Binary values -Number ofHosts -128+64192102420484,0968,19216,38432,76865,5365121,0242,0484,0968,19216,38432,76865,53610
  13. 13. Custom Subnet MasksProblem 4Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed630210.100.56.0____________________________________________________________________________________________________________________________________________________________________210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 16 32 64 128 256Number of256 128 64 32 16 8 4 2 - HostsShow your work for Problem 4 in the space below.11
  14. 14. 12Custom Subnet MasksProblem 5Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed630195.85.8.0____________________________________________________________________________________________________________________________________________________________________195 . 85 . 8 . 0 0 0 0 0 0 0 0195 . 85 . 8 . 0 0 0 0 0 0 0 0195 . 85 . 8 . 0 0 0 0 0 0 0 0195 . 85 . 8 . 0 0 0 0 0 0 0 0195 . 85 . 8 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 16 32 64 128 256Number of256 128 64 32 16 8 4 2 - HostsShow your work for Problem 5 in the space below.
  15. 15. 13Custom Subnet MasksProblem 6Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed126131,070118.0.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 6 in the space below.118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0Number ofSubnets - 2 4 8 16 32 64 128 256 .. 256 128 64 32 16 8 4 2Binary values -128 64 32 16 8 4 2 1 ..... 128 64 32 16 8 4 2 1 ..... 128 64 32 16 8 4 2 1Number ofHosts-5121,0242,0484,0968,19216,38432,76865,536131,072262,144524,2881,048,5762,097,1524,194,304.5121,0242,0484,0968,19216,38432,76865,536131,072262,144524,2881,048,5762,097,1524,194,304
  16. 16. 14Custom Subnet MasksProblem 7Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed200015178.100.0.0_______________________________________________________________________________________________________________________________________________________________________Show your work for Problem 7 in the space below.178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1Number ofSubnets - 2 4 8 16 32 64 128 256.. 256 128 64 32 16 8 4 2128 64 32 16 8 4 2 1 .....512Binary values -Number ofHosts -102420484,0968,19216,38432,76865,5365121,0242,0484,0968,19216,38432,76865,536
  17. 17. 15Custom Subnet MasksProblem 8Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed145200.175.14.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 8 in the space below.
  18. 18. Custom Subnet MasksProblem 9Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed601,000128.77.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 9 in the space below.16
  19. 19. Custom Subnet MasksProblem 10Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed60198.100.10.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 10 in the space below.17
  20. 20. Custom Subnet MasksProblem 11Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed250101.0.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 11 in the space below.18
  21. 21. Custom Subnet MasksProblem 12Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed5218.35.50.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 12 in the space below.19
  22. 22. Custom Subnet MasksProblem 13Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed25218.35.50.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 13 in the space below.20
  23. 23. Custom Subnet MasksProblem 14Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed10172.59.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 14 in the space below.21
  24. 24. Custom Subnet MasksProblem 15Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed50172.59.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 15 in the space below.22
  25. 25. Custom Subnet MasksProblem 16Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed2923.0.0.0____________________________________________________________________________________________________________________________________________________________________Show your work for Problem 16 in the space below.23
  26. 26. _____________________________________________________________________________________________________________________________________192.10.10.48 to 192.10.10.63192 . 10 . 10 . 112192 . 10 . 10 . 207192.10.10.129 to 192.10.10.14224SubnettingProblem 1Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed1414192.10.10.0_______________________________________________________________________________________________________________________________________________________________________C255 . 255 . 255 . 0255 . 255 . 255 . 240161416144What is the 3rd usablesubnet range?What is the subnet numberfor the 7th usable subnet?What is the subnetbroadcast address forthe 12th usable subnet?What are the assignableaddresses for the 8thusable subnet?
  27. 27. Show your work for Problem 1 in the space below.192.10.10.0 to 192.10.10.15192.10.10.16 to 192.10.10.31192.10.10.32 to 192.10.10.47192.10.10.48 to 192.10.10.63192.10.10.64 to 192.10.10.79192.10.10.80 to 192.10.10.95192.10.10.96 to 192.10.10.111192.10.10.112 to 192.10.10.127192.10.10.128 to 192.10.10.143192.10.10.144 to 192.10.10.159192.10.10.160 to 192.10.10.175192.10.10.176 to 192.10.10.191192.10.10.192 to 192.10.10.207192.10.10.208 to 192.10.10.223192.10.10.224 to 192.10.10.239192.10.10.240 to 192.10.10.255192. 10 . 10 . 0 0 0 0 0 0 0 0192. 10 . 10 . 0 0 0 0 0 0 0 0192. 10 . 10 . 0 0 0 0 0 0 0 0192. 10 . 10 . 0 0 0 0 0 0 0 0192. 10 . 10 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 162 4 8 162 4 8 162 4 8 162 4 8 16 32 64 128 256Number of256 128 64 32 16 8 4 2 - Hosts16-21416-2141286432+16240The binary value of the last bit borrowed is the range. In thisproblem the range is 16.The first and last range of addresses are not usable.The first usable range of addresses is: 192.10.10.16 to192.10.10.31.Custom subnetmaskUsable hostsUsable subnetsThe first address in each subnet range is the subnetnumber.The last address in each subnet range is the subnetbroadcast address.2501010101010101011100110011001111110000111111111111(Invalid range)(Invalid range)
  28. 28. _____________________________________________________________________________________________________________________________________165.100.3.128 to 165.100.3.191165 . 100 . 1 . 64165 . 100 . 1 . 127165.100.2.1 to 165.100.0.6226SubnettingProblem 2Number of needed usable subnetsNumber of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed100060165.100.0.0_______________________________________________________________________________________________________________________________________________________________________B255 . 255 . 0 . 0255 . 255 . 255 . 1921,0241,022646210What is the 14th usablesubnet range?What is the subnet numberfor the 5th usable subnet?What is the subnetbroadcast address forthe 5th usable subnet?What are the assignableaddresses for the 8thusable subnet?
  29. 29. 165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000000165.100.00000000.00000000165.100.0.0to165.100.0.63165.100.0.64to165.100.0.127165.100.0.128to165.100.0.191165.100.0.192to165.100.0.255165.100.1.0to165.100.1.63165.100.1.64to165.100.1.127165.100.1.128to165.100.1.191165.100.1.192to165.100.1.255165.100.2.0to165.100.0.63165.100.2.64to165.100.0.127165.100.2.128to165.100.0.191165.100.2.192to165.100.0.255165.100.3.0to165.100.3.63165.100.3.64to165.100.3.127165.100.3.128to165.100.3.191165.100.3.192to165.100.3.255Downto165.100.255.128to165.100.255.191165.100.255.192to165.100.255.255Thebinaryvalueofthelastbitborrowedistherange.Inthisproblemtherangeis64.Thefirstandlastrangeofaddressesarenotusable.Thefirstusablerangeofaddressesis:165.100.0.64to165.100.0.127Thefirstaddressineachsubnetrangeisthesubnetnumber.Thelastaddressineachsubnetrangeisthesubnetbroadcastaddress.2764-2621024-21,022Usablehosts128643216842+1255128+64192UsablesubnetsCustomsubnetmaskShow your work for Problem 2 in the space below.1286432168421NumberofSubnets-248163264128256..2561286432168421286432168421.....512Binaryvalues-NumberofHosts-102420484,0968,19216,38432,76865,5365121,0242,0484,0968,19216,38432,76865,53601010101010101011100110011001111110000111111111111(Invalidrange).............(Invalidrange)
  30. 30. _____________________________________________________________________________________________________________________________________28SubnettingProblem 3Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed1195.223.50.0_______________________________________________________________________________________________________________________________________________________________________What is the 2nd usablesubnet range?What is the subnet numberfor the 1st usable subnet?What is the subnetbroadcast address forthe 1st usable subnet?What are the assignableaddresses for the 2ndusable subnet?
  31. 31. Show your work for Problem 3 in the space below.29128 64 32 16 8 4 2 1 - Binary valuesNumber ofSubnets - 2 4 8 162 4 8 162 4 8 162 4 8 162 4 8 16 32 64 128 256Number of256 128 64 32 16 8 4 2 - Hosts195. 223 . 50 . 0 0 0 0 0 0 0 0195. 223 . 50 . 0 0 0 0 0 0 0 0195. 223 . 50 . 0 0 0 0 0 0 0 0195. 223 . 50 . 0 0 0 0 0 0 0 0195. 223 . 50 . 0 0 0 0 0 0 0 0
  32. 32. _____________________________________________________________________________________________________________________________________30SubnettingProblem 4Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed750190.35.0.0_______________________________________________________________________________________________________________________________________________________________________What is the 14th usablesubnet range?What is the subnet numberfor the 12th usablesubnet?What is the subnetbroadcast address forthe 9th usable subnet?What are the assignableaddresses for the 5thusable subnet?
  33. 33. Show your work for Problem 4 in the space below.31
  34. 34. _____________________________________________________________________________________________________________________________________32SubnettingProblem 5Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed6126.0.0.0_______________________________________________________________________________________________________________________________________________________________________What is the 1st usablesubnet range?What is the subnet numberfor the 4th usable subnet?What is the subnetbroadcast address forthe 6th usable subnet?What are the assignableaddresses for the 9thusable subnet?
  35. 35. Show your work for Problem 5 in the space below.33
  36. 36. _____________________________________________________________________________________________________________________________________34SubnettingProblem 6Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed10192.70.10.0_______________________________________________________________________________________________________________________________________________________________________What is the 8th usablesubnet range?What is the subnet numberfor the 3rd usable subnet?What is the subnetbroadcast address forthe 11th usable subnet?What are the assignableaddresses for the 9thusable subnet?
  37. 37. Show your work for Problem 6 in the space below.35
  38. 38. ____________________________________________________________________________________________________________________________________36SubnettingProblem 7Network AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed10.0.0.0 /16_______________________________________________________________________________________________________________________________________________________________________What is the 10th usablesubnet range?What is the subnet numberfor the 5th usable subnet?What is the subnetbroadcast address forthe 1st usable subnet?What are the assignableaddresses for the 8thusable subnet?
  39. 39. Show your work for Problem 7 in the space below.37
  40. 40. _____________________________________________________________________________________________________________________________________38SubnettingProblem 8Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed4172.50.0.0_______________________________________________________________________________________________________________________________________________________________________What is the 3rd usablesubnet range?What is the subnet numberfor the 4th usable subnet?What is the subnetbroadcast address forthe 5th usable subnet?What are the assignableaddresses for the 2ndusable subnet?
  41. 41. Show your work for Problem 8 in the space below.39
  42. 42. _____________________________________________________________________________________________________________________________________40SubnettingProblem 9Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed28172.50.0.0_______________________________________________________________________________________________________________________________________________________________________What is the 1st usablesubnet range?What is the subnet numberfor the 9th usable subnet?What is the subnetbroadcast address forthe 3rd usable subnet?What are the assignableaddresses for the 5thusable subnet?
  43. 43. Show your work for Problem 9 in the space below.41
  44. 44. _____________________________________________________________________________________________________________________________________42SubnettingProblem 10Number of needed usable subnetsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed45220.100.100.0_______________________________________________________________________________________________________________________________________________________________________What is the 4th usablesubnet range?What is the subnet numberfor the 3rd usable subnet?What is the subnetbroadcast address forthe 12th usable subnet?What are the assignableaddresses for the 11thusable subnet?
  45. 45. Show your work for Problem 10 in the space below.43
  46. 46. _____________________________________________________________________________________________________________________________________44SubnettingProblem 11Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed8,000135.70.0.0_______________________________________________________________________________________________________________________________________________________________________What is the 5th usablesubnet range?What is the subnet numberfor the 6th usable subnet?What is the subnetbroadcast address forthe 2nd usable subnet?What are the assignableaddresses for the 4thusable subnet?
  47. 47. Show your work for Problem 11 in the space below.45
  48. 48. 46SubnettingProblem 12Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed45198.125.50.0_______________________________________________________________________________________________________________________________________________________________________What is the 1st usablesubnet range?What is the subnet numberfor the 1st usable subnet?What is the subnetbroadcast address forthe 2nd usable subnet?What are the assignableaddresses for the 2ndusable subnet?_____________________________________________________________________________________________________________________________________
  49. 49. Show your work for Problem 12 in the space below.47
  50. 50. _____________________________________________________________________________________________________________________________________48SubnettingProblem 13Network AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed165.200.0.0 /26_______________________________________________________________________________________________________________________________________________________________________What is the 9th usablesubnet range?What is the subnet numberfor the 10th usablesubnet?What is the subnetbroadcast address forthe 1022nd usablesubnet?What are the assignableaddresses for the 1021stusable subnet?
  51. 51. Show your work for Problem 13 in the space below.49
  52. 52. _____________________________________________________________________________________________________________________________________50SubnettingProblem 14Number of needed usable hostsNetwork AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed16200.10.10.0_______________________________________________________________________________________________________________________________________________________________________What is the 6th usablesubnet range?What is the subnet numberfor the 4th usable subnet?What is the subnetbroadcast address forthe 3rd usable subnet?What are the assignableaddresses for the 5thusable subnet?
  53. 53. Show your work for Problem 14 in the space below.51
  54. 54. _____________________________________________________________________________________________________________________________________52SubnettingProblem 15Network AddressAddress classDefault subnet maskCustom subnet maskTotal number of subnetsNumber of usable subnetsTotal number of host addressesNumber of usable addressesNumber of bits borrowed93.0.0.0 19_______________________________________________________________________________________________________________________________________________________________________What is the 14th usablesubnet range?What is the subnet numberfor the 8th usable subnet?What is the subnetbroadcast address forthe 6th usable subnet?What are the assignableaddresses for the 11thusable subnet?
  55. 55. Show your work for Problem 15 in the space below.53
  56. 56. Valid and Non-Valid IP AddressesUsing the material in this workbook identify which of the addresses below are correct andusable. If they are not usable addresses explain why.IP Address: 0.230.190.192 ________________________________Subnet Mask: 255.0.0.0 ________________________________IP Address: 192.10.10.1 ________________________________Subnet Mask: 255.255.255.0 ________________________________IP Address: 245.150.190.10 ________________________________Subnet Mask: 255.255.255.0 ________________________________IP Address: 135.70.191.255 ________________________________Subnet Mask: 255.255.254.0 ________________________________IP Address: 127.100.100.10 ________________________________Subnet Mask: 255.0.0.0 ________________________________IP Address: 93.0.128.1 ________________________________Subnet Mask: 255.255.224.0 ________________________________IP Address: 200.10.10.128 ________________________________Subnet Mask: 255.255.255.224 ________________________________IP Address: 165.100.255.189 ________________________________Subnet Mask: 255.255.255.192 ________________________________IP Address: 190.35.0.10 ________________________________Subnet Mask: 255.255.255.192 ________________________________IP Address: 218.35.50.195 ________________________________Subnet Mask: 255.255.0.0 ________________________________IP Address: 200.10.10.175 /22 ________________________________________________________________IP Address: 135.70.255.255 ________________________________Subnet Mask: 255.255.224.0 ________________________________The network ID cannot be 0.OK54
  57. 57. Class A Addressing Guide# of BitsBorrowed2345678910111213141516171819202122SubnetMask255.192.0.0255.224.0.0255.240.0.0255.248.0.0255.252.0.0255.254.0.0255.255.0.0255.255.128.0255.255.192.0255.255.224.0255.255.240.0255.255.248.0255.255.252.0255.255.254.0255.255.255.0255.255.255.128255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252Total # ofSubnets481632641282565121,0242,0484,0968,19216,38432,76865,536131,072262,144524,2881,048,5762,097,1524,194,304Usable # ofSubnets261430621262545101,0222,0464,0948,19016,38232,76665,534131,070262,142524,2861,048,5742,097,1504,194,302Total # ofHosts4,194,3042,097,1521,048,576524,288262,144131,07265,53632,76816,3848,1924,0962,0481,02451225612864321684Usable # ofHosts4,194,3022,097,1501,048,574524,286262,142131,07065,53432,76616,3828,1904,0942,0461,02251025412662301462Class B Addressing Guide# of BitsBorrowed234567891011121314SubnetMask255.255.192.0255.255.224.0255.255.240.0255.255.248.0255.255.252.0255.255.254.0255.255.255.0255.255.255.128255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252Total # ofSubnets481632641282565121,0242,0484,0968,19216,384Usable # ofSubnets261430621262545101,0222,0464,0948,19016,382Total # ofHosts16,3848,1924,0962,0481,02451225612864321684Usable # ofHosts16,3828,1904,0942,0461,02251025412662301462Class C Addressing Guide# of BitsBorrowed23456SubnetMask255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252Total # ofSubnets48163264Usable # ofSubnets26143062Total # ofHosts64321684Usable # ofHosts62301462Inside Cover

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