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SUBNETTING

SUBNETTING. Example – 1. Class C : N . N . N . H 110xxxxx . xxxxxxxx . xxxxxxxx . xxxxxxxx Class C : 192.168.1.0 No. of Subnet = 2 n – 2 = 2 1 – 2 = 2 – 2 = 0 Subnet. 110xxxxx . xxxxxxxx . xxxxxxxx . x xxxxx.

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SUBNETTING

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  1. SUBNETTING

  2. Example – 1 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Subnet • = 2n – 2 • = 21 – 2 • = 2 – 2 • = 0 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxx • One bit masking is Invalid, You are not getting any networks when you convert 1 host bit to network bit. HELP

  3. Example – 2 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Subnet • = 2n – 2 • = 27 – 2 • = 128 – 2 • = 126 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 21 – 2 • = 2 – 2 = 0 Hosts/Subnet • In this case, You are not getting any host when you convert 7 host bit to network bit. HELP

  4. Example – 3 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Subnet • = 2n – 2 • = 28 – 2 • = 256 – 2 • = 254 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 20 – 2 • = 0 – 2 = -2 Hosts/Subnet • In this case, You are not getting any host when you convert 8 host bit to network bit. HELP

  5. Requirement of Hosts is 40 ? Example – 1 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Host • = 2h – 2  Req. of Host • = 26 – 2  40 (-2 is for Network ID & Broadcast ID) • = 64 – 2 • = 62 Hosts/Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Subnet • = 2n – 2 (-2 is for First & Last Subnet Range) • = 22 – 2 • = 4 – 2 • = 2 Subnet HELP

  6. 255. 255. 255. 192 Valid Subnets Example – 1 (Continued…) If you convert 2 Host Bits to Network Bits 2 Subnet & 62 Hosts/Subnet Customize Subnet Mask 255.255.255.192 Subnet Range 192.168.1.64 to 192.168.1.127 192.168.1.128 to 192.168.1.191 • Customize Subnet Mask = 11111111. 11111111. 11111111. 11000000 128 64 64 • Range of Networks • Network ID Broadcast ID • 192.168.1.0 x – 192.168.1.63 192.168.1.64 – 192.168.1.127 192.168.1.128 – 192.168.1.191 x 192.168.1.192 – 192.168.1.255

  7. Requirement of Hosts is 2 ? Example – 2 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Host • = 2h – 2  Req. of Host • = 22 – 2  2 (-2 is for Network ID & Broadcast ID) • = 4 – 2 • = 2 Hosts/Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Subnet • = 2n – 2 (-2 is for First & Last Subnet Range) • = 26 – 2 • = 64 – 2 • = 62 Subnet HELP

  8. 255. 255. 252 255. Valid Subnets Example – 2 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111111. 11111100 128 64 32 16 8 4 4 • Range of Networks • Network ID Broadcast ID • 192.168.1.0 x – 192.168.1.3 192.168.1.4 – 192.168.1.7 192.168.1.8 – 192.168.1.11 192.168.1.12 – 192.168.1.15 192.168.1.248 – 192.168.1.251 192.168.1.252 – 192.168.1.255 x

  9. Cisco / Notation Example – 1 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0/29 • Extra Network Bits = 29 – 24 = 5 • Put n value = 5 • No. of Subnet • = 2n – 2 • = 25 – 2 (-2 is for First & Last Subnet Range) • = 32 – 2 • = 30 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 23 – 2 • = 8 – 2 • = 6 Hosts/Subnet HELP

  10. If you convert 5 Host Bits to Network Bits 30 Subnet & 6 Hosts/Subnet Customize Subnet Mask 255.255.255.248 Subnet Range 192.168.1.8 to 192.168.1.15 192.168.1.16 to 192.168.1.23 192.168.1.24 to 192.168.1.31 192.168.1.32 to 192.168.1.39 192.168.1.240 to 192.168.1.247 255. 255. 248 255. Valid Subnets Example – 1 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111111. 11111000 128 64 32 16 8 8 • Range of Networks • Network ID Broadcast ID • 192.168.1.0 x – 192.168.1.7 192.168.1.8 – 192.168.1.15 192.168.1.16 – 192.168.1.23 192.168.1.24 – 192.168.1.31 192.168.1.240 – 192.168.1.247 192.168.1.248 – 192.168.1.255 x

  11. Cisco / Notation Example – 2 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0/28 • Extra Network Bits = 28 – 24 = 4 • Put n value = 4 • No. of Subnet • = 2n – 2 • = 24 – 2 (-2 is for First & Last Subnet Range) • = 16 – 2 • = 14 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 24 – 2 • = 16 – 2 • = 14 Hosts/Subnet HELP

  12. If you convert 4 Host Bits to Network Bits 14 Subnet & 14 Hosts/Subnet Customize Subnet Mask 255.255.255.240 Subnet Range 192.168.1.16 to 192.168.1.31 192.168.1.32 to 192.168.1.47 192.168.1.48 to 192.168.1.63 192.168.1.64 to 192.168.1.80 192.168.1.224 to 192.168.1.239 255. 255. 255. 240 Valid Subnets Example – 2 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111111. 11110000 128 64 32 16 16 • Range of Networks • Network ID Broadcast ID • 192.168.1.0 x – 192.168.1.15 192.168.1.16 – 192.168.1.31 192.168.1.32 – 192.168.1.47 192.168.1.48 – 192.168.1.63 192.168.1.224 – 192.168.1.239 192.168.1.240 – 192.168.1.255 x

  13. Requirement of Networks is 2 ? Example – 1 • Class B : N.N.H.H • 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class B : 172.16.0.0 • No. of Subnet • = 2n – 2  Req. of Subnet • = 22 – 2  2 (-2 is for First & Last Subnet Range) • = 4 – 2 • = 2 Subnet 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 214 – 2 • = 16384 – 2 • = 16382 Hosts/Subnet HELP

  14. 255. 255. 192. 0 Valid Subnets Example – 1 (Continued…) If you convert 2 Host Bits to Network Bits 2 Subnet & 16382 Hosts/Subnet Customize Subnet Mask 255.255.192.0 Subnet Range 172.16.64.0 to 172.16.127.255 172.16.128.0 to 172.16.191.255 • Customize Subnet Mask = 11111111. 11111111. 11000000. 00000000 128 64 64 • Range of Networks • Network ID Broadcast ID • 172.16.0.0 x – 172.16.63.255 172.16.64.0 – 172.16.127.255 172.16.128.0 – 172.16.191.255 x 172.16.192.0 – 172.16.255.255

  15. Requirement of Hosts is 126 ? Example – 2 • Class B : N.N.H.H • 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class B : 172.16.0.0 • No. of Host • = 2h – 2  Req. of Host • = 27 – 2  126 (-2 is for Network ID & BroadcastID) • = 128 – 2 • = 126 Hosts/Subnet 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Subnet • = 2n – 2 (-2 is for First & Last Subnet Range) • = 29 – 2 • = 512 – 2 • = 510 Subnet HELP

  16. If you convert 9 Host Bits to Network Bits 510 Subnet & 126 Hosts/Subnet Customize Subnet Mask 255.255.255.128 Subnet Range 172.16.0.128 to 172.16.0.255 172.16.1.0 to 172.16.1.127 172.16.1.128 to 172.16.1.255 172.16.2.0 to 172.16.2.127 172.16.255.0 to 172.16.255.127 255. 255. 255. 128 Valid Subnets Example – 2 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111111. 10000000 128 128 • Range of Networks • Network ID Broadcast ID • 172.16.0.0 x – 172.16.0.127 172.16.0.128 – 172.16.0.255 172.16.1.0 – 172.16.1.127 172.16.1.128 – 172.16.1.255 172.16.255.0 – 172.16.255.127 172.16.255.128 – 172.16.255.255 x

  17. Cisco / Notation Example – 3 • Class B : N.N.H.H • 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class B : 172.16.0.0/22 • Extra Network Bits = 22 – 16 = 6 • Put n value = 6 • No. of Subnet • = 2n – 2 • = 26 – 2 (-2 is for First & Last Subnet Range) • = 64 – 2 • = 62 Subnet 10xxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 210 – 2 • = 1024 – 2 • = 1022 Hosts/Subnet HELP

  18. If you convert 6 Host Bits to Network Bits 62 Subnet & 1022 Hosts/Subnet Customize Subnet Mask 255.255.252.0 Subnet Range 172.16.4.0 to 172.16.7.255 172.16.8.0 to 172.16.11.255 172.16.12.0 to 172.16.15.255 172.16.16.0 to 172.16.19.255 172.16.248.0 to 172.16.251.255 255. 255. 0 252. Valid Subnets Example – 3 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111100. 00000000 128 64 32 16 8 4 4 • Range of Networks • Network ID Broadcast ID • 172.16.0.0 x – 172.16.3.255 172.16.4.0 – 172.16.7.255 172.16.8.0 – 172.16.11.255 172.16.12.0 – 172.16.15.255 172.16.248.0 – 172.16.251.255 172.16.252.0 – 172.16.255.255 x

  19. Requirement of Networks is 500 ? Example – 1 • Class A : N.H.H.H • 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class A : 10.0.0.0 • No. of Subnet • = 2n – 2  Req. of Subnet • = 29 – 2  500 (-2 is for First & Last Subnet Range) • = 512 – 2 • = 510 Subnet 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 215 – 2 • = 32768 – 2 • = 32766 Hosts/Subnet HELP

  20. If you convert 9 Host Bits to Network Bits 510 Subnet & 32766 Hosts/Subnet Customize Subnet Mask 255.255.128.0 Subnet Range 10.0.128.0 to 10.0.255.255 10.1.0.0 to 10.1.127.255 10.1.128.0 to 10.1.255.255 10.2.0.0 to 10.2.127.255 10.255.0.0 to 10.255.127.255 255. 255. 0 128. Valid Subnets Example – 1 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 10000000. 00000000 128 128 • Range of Networks • Network ID Broadcast ID • 10.0.0.0 x – 10.0.127.255 10.0.128.0 – 10.0.255.255 10.1.0.0 – 10.1.127.255 10.1.128.0 – 10.1.255.255 10.255.0.0 – 10.255.127.255 10.255.128.0 – 10.255.255.255 x

  21. Requirement of Hosts is 260000 ? Example – 2 • Class A : N.H.H.H • 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class A : 10.0.0.0 • No. of Host • = 2h – 2  Req. of Host • = 218 – 2  260000 (-2 is for Network ID & BroadcastID) • = 262144 – 2 • = 262142 Hosts/Subnet 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Subnet • = 2n – 2 (-2 is for First & Last Subnet Range) • = 26 – 2 • = 64 – 2 • = 62 Subnet HELP

  22. If you convert 6 Host Bits to Network Bits 62 Subnet & 262142 Hosts/Subnet Customize Subnet Mask 255.252.0.0 Subnet Range 10.4.0.0 to 10.3.255.255 10.8.0.0 to 10.7.255.255 10.12.0.0 to 10.15.255.255 10.16.0.0 to 10.19.255.255 10.248.0.0 to 10.251.255.255 255. 252. 0. 0 Valid Subnets Example – 2 (Continued…) • Customize Subnet Mask = 11111111. 11111100. 00000000. 00000000 128 64 32 16 8 4 4 • Range of Networks • Network ID Broadcast ID • 10.0.0.0 x – 10.3.255.255 10.4.0.0 – 10.7.255.255 10.8.0.0 – 10.11.255.255 10.12.0.0 – 10.15.255.255 10.248.0.0 – 10.251.255.255 10.252.0.0 – 10.255.255.255 x

  23. Cisco / Notation Example – 3 • Class A : N.H.H.H • 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class A : 10.0.0.0/20 • Extra Network Bits = 20 – 8 = 12 • Put n value = 12 • No. of Subnet • = 2n – 2 • = 212 – 2 (-2 is for First & Last Subnet Range) • = 4096 – 2 • = 4094 Subnet 0xxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 212 – 2 • = 4096 – 2 • = 4094 Hosts/Subnet HELP

  24. If you convert 12 Host Bits to Network Bits 4094 Subnet & 4094 Hosts/Subnet Customize Subnet Mask 255.255.240.0 Subnet Range 10.0.16.0 to 10.31.255.255 10.0.32.0 to 10.47.255.255 10.0.48.0 to 10.63.255.255 10.0.64.0 to 10.79.255.255 10.255.224.0 to 10.255.239.255 255. 255. 240. 0 Valid Subnets Example – 3 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11110000. 00000000 128 64 32 16 16 • Range of Networks • Network ID Broadcast ID • 10.0.0.0 x – 10.0.15.255 10.0.16.0 – 10.0.31.255 10.0.32.0 – 10.0.47.255 10.0.48.0 – 10.0.63.255 10.255.224.0 – 10.255.239.255 10.255.240.0 – 10.255.255.255 x

  25. VLSM • Subnetting a subnet is called as Variable Length Subnet Mask • VLSMs provide the capability to include more than one subnet mask within a major network

  26. Scenario • ZOOM Technologies is having 100 PC • ZOOM Technologies – 192.168.1.0/24 • – MCSE • – CISCO • – FIREWALL • – SOLARIS • – TRAINING • Administrator’s requirement : Inter-department communication should not be possible ? • Best Solution is : • FLSM i.e. Subnetting

  27. ZOOM Technologies • – MCSE • – CISCO • – Ccna • – Ccnp • – FIREWALL • – ISA • – Checkpoint • – Net SQ • – Clavister • – Cisco PIX • – SOLARIS • – Linux • – Unix • – Solaris • – TRAINING Scenario (…continued) Now we are also having sub departments

  28. Scenario (…continued) • Administrator does not want inter-department communication in the sub departments ? • Answer : You will use the subnet range to further divide it into smaller ranges, this time its Subnetting of a Subnet i.e. VLSM.

  29. Calculation of FLSM • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.0 • No. of Subnet • = 2n – 2  Req. of Subnet • = 23 – 2  5 (-2 is for First & Last Subnet Range) • = 8 – 2 • = 6 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 25 – 2 • = 32 – 2 • = 30 Hosts/Subnet HELP

  30. 255. 255. 255. 224 Valid Subnets FLSM (Continued…) If you convert 3 Host Bits to Network Bits 6 Subnet & 30 Hosts/Subnet Customize Subnet Mask 255.255.255.224 Subnet Range 192.168.1.32 to 192.168.1.63. 192.168.1.64 to 192.168.1.95 192.168.1.96 to 192.168.1.127 192.168.1.128 to 192.168.1.159 192.168.1.160 to 192.168.1.191 192.168.1.192 to 192.168.1.223 • Customize Subnet Mask = 11111111. 11111111. 11111111. 11100000 128 64 32 32 • Range of Networks • Network ID Broadcast ID • 192.168.1.0 x 192.168.1.31 192.168.1.63 192.168.1.95 192.168.1.127 192.168.1.159 192.168.1.191 192.168.1.223 192.168.1.255 192.168.1.32 192.168.1.64 192.168.1.96 192.168.1.128 192.168.1.160 192.168.1.192 192.168.1.224 x

  31. ZOOM Technologies • – MCSE • – CISCO • – Ccna • – Ccnp • – FIREWALL • – ISA • – Checkpoint • – Net SQ • – Clavister • – Cisco PIX • – SOLARIS • – Linux • – Unix • – Solaris • – TRAINING 192.168.1.32 – 1.63/27 192.168.1.64 – 1.95/27 192.168.1.96 – 1.127/27 192.168.1.128 – 1.159/27 192.168.1.160 – 1.191/27 Assigning of the Ranges

  32. Calculation of VLSM for CISCO Dept. • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.64 • No. of Subnet • = 2n  Req. of Subnet • = 21  2 • = 2 • = 2 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 24 – 2 • = 16 – 2 • = 14 Hosts/Subnet HELP

  33. 255. 255. 240 255. Valid Subnets VLSM (Continued…) If you convert 1 more Host Bit to Network Bit 2 Subnet & 14 Hosts/Subnet Customize Subnet Mask 255.255.255.240 Subnet Range 192.168.1.64 to 192.168.1.79 192.168.1.80 to 192.168.1.95 • Customize Subnet Mask = 11111111. 11111111. 11111111. 11110000 128 64 32 16 16 • Range of Networks • Network ID Broadcast ID • 192.168.1.64 – 192.168.1.79 192.168.1.80 – 192.168.1.95

  34. ZOOM Technologies • – MCSE • – CISCO • – Ccna • – Ccnp • – FIREWALL • – ISA • – Checkpoint • – Net SQ • – Clavister • – Cisco PIX • – SOLARIS • – Linux • – Unix • – Solaris • – TRAINING 192.168.1.32 – 1.63/27 192.168.1.96 – 1.127/27 192.168.1.128 – 1.159/27 192.168.1.160 – 1.191/27 192.168.1.64 – 1.95/27 192.168.1.64 – 1.79/28 192.168.1.80 – 1.95/28 Assigning of the Ranges

  35. Calculation of VLSM for Firewall Dept. • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.96 • No. of Subnet • = 2n  Req. of Subnet • = 23  5 • = 8 • = 8 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 22 – 2 • = 4 – 2 • = 2 Hosts/Subnet HELP

  36. 255. 255. 252 255. Valid Subnets VLSM (Continued…) If you convert 3 more Host Bit to Network Bit 8 Subnet & 2 Hosts/Subnet Customize Subnet Mask 255.255.255.252 Subnet Range 192.168.1.96 to 192.168.1.99 192.168.1.100 to 192.168.1.103 192.168.1.104 to 192.168.1.107 192.168.1.108 to 192.168.1.111 192.168.1.112 to 192.168.1.115 192.168.1.116 to 192.168.1.119 192.168.1.120 to 192.168.1.123 192.168.1.124 to 192.168.1.127 • Customize Subnet Mask = 11111111. 11111111. 11111111. 11111100 8 4 4 128 64 32 16 • Range of Networks • Network ID Broadcast ID • 192.168.1.96 – 192.168.1.99 192.168.1.100 – 192.168.1.103 192.168.1.104 – 192.168.1.107 192.168.1.108 – 192.168.1.111 192.168.1.112 – 192.168.1.115 192.168.1.116 – 192.168.1.119 192.168.1.120 – 192.168.1.123 192.168.1.124 – 192.168.1.127

  37. ZOOM Technologies • – MCSE • – CISCO • – Ccna • – Ccnp • – FIREWALL • – ISA • – Checkpoint • – Net SQ • – Clavister • – Cisco PIX • – SOLARIS • – Linux • – Unix • – Solaris • – TRAINING 192.168.1.32 – 1.63/27 192.168.1.96 – 1.127/27 192.168.1.128 – 1.159/27 192.168.1.160 – 1.191/27 192.168.1.64 – 1.95/27 192.168.1.64 – 1.79/28 192.168.1.96 – 1.99/30 192.168.1.104 – 1.107/30 192.168.1.80 – 1.95/28 192.168.1.100 – 1.103/30 192.168.1.108 – 1.111/30 192.168.1.112 – 1.115/30 Assigning of the Ranges

  38. Calculation of VLSM for Solaris Dept. • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.1.128 • No. of Subnet • = 2n  Req. of Subnet • = 22  3 • = 4 • = 4 Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • No. of Host • = 2h – 2 (-2 is for Network ID & Broadcast ID) • = 23 – 2 • = 8 – 2 • = 6 Hosts/Subnet HELP

  39. 255. 255. 248 255. Valid Subnets VLSM (Continued…) If you convert 2 more Host Bit to Network Bit 4 Subnet & 6 Hosts/Subnet Customize Subnet Mask 255.255.255.248 Subnet Range 192.168.1.128 to 192.168.1.135 192.168.1.136 to 192.168.1.143 192.168.1.144 to 192.168.1.151 192.168.1.152 to 192.168.1.159 • Customize Subnet Mask = 11111111. 11111111. 11111111. 11111000 8 8 128 64 32 16 • Range of Networks • Network ID Broadcast ID • 192.168.1.128 – 192.168.1.135 192.168.1.136 – 192.168.1.143 192.168.1.144 – 192.168.1.151 192.168.1.152 – 192.168.1.159

  40. ZOOM Technologies • – MCSE • – CISCO • – Ccna • – Ccnp • – FIREWALL • – ISA • – Checkpoint • – Net SQ • – Clavister • – Cisco PIX • – SOLARIS • – Linux • – Unix • – Solaris • – TRAINING 192.168.1.32 – 1.63/27 192.168.1.96 – 1.127/27 192.168.1.128 – 1.159/27 192.168.1.160 – 1.191/27 192.168.1.64 – 1.95/27 192.168.1.104 – 1.107/30 192.168.1.96 – 1.99/30 192.168.1.128 – 1.135/29 192.168.1.64 – 1.79/28 192.168.1.144 – 1.151/29 192.168.1.112 – 1.115/30 192.168.1.80 – 1.95/28 192.168.1.100 – 1.103/30 192.168.1.136 – 1.143/29 192.168.1.108 – 1.111/30 Assigning of the Ranges

  41. VSNL ROUTER 192.168.1.0/24 1.32/27 1.160/27 1.144/29 1.64/27 1.128/27 1.64/28 1.136/29 1.96/27 1.79/28 1.128/29 1.96/30 1.112/30 1.100/30 1.108/30 1.104/30

  42. CIDR Classless Inter Domain Routing • It is reverse (inverse) of Subnetting • Combining of Multiple Networks to Single Networks • Converting Network Bits to Hosts Bits i.e. Converting 1’s into 0’s • Generally design for Class C networks • Easier Summarization • It is also known as Supernetting

  43. VSNL ROUTER 192.168.1.0/24 1.32/27 1.160/27 1.144/29 1.64/27 1.128/27 1.64/28 1.136/29 1.96/27 1.79/28 1.128/29 1.96/30 1.112/30 1.100/30 1.108/30 1.104/30

  44. Requirement of Hosts is 1000 ? Example – 1 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.0.0 • No. of Host • = 2h – 2  Req. of Host • = 210 – 2  1000 (-2 is for Network ID & Broadcast ID) • = 1024 – 2 • = 1022 Hosts/Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx HELP

  45. 255. 255. 252. 0 Valid Subnets Example – 1 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11111100. 00000000 128 64 32 16 8 4 4 • Range of Networks • Network ID Broadcast ID • 192.168.0.0 – 192.168.3.255 192.168.4.0 – 192.168.7.255 192.168.8.0 – 192.168.11.255 192.168.12.0 – 192.168.15.255 192.168.248.0 – 192.168.251.255 192.168.252.0 – 192.168.255.255

  46. Requirement of Hosts is 12000 ? Example – 2 • Class C : N.N.N.H • 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx • Class C : 192.168.0.0 • No. of Host • = 2h – 2  Req. of Host • = 214 – 2  12000 (-2 is for Network ID &BroadcastID) • = 16384 – 2 • = 16382 Hosts/Subnet 110xxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx HELP

  47. 255. 255. 0 192. Example – 2 (Continued…) • Customize Subnet Mask = 11111111. 11111111. 11000000. 00000000 128 64 64 • Range of Networks • Network ID Broadcast ID • 192.168.0.0 – 192.168.63.255 192.168.64.0 – 192.168.127.255 192.168.128.0 – 192.168.191.255 192.168.192.0 – 192.168.255.255

  48. THE END

  49. POWER TABLE 21= 2 22= 4 23= 8 24= 16 25= 32 26= 64 27= 128 28= 256 29 = 512 210= 1024 211= 2048 212= 4096 213= 8192 214= 16384 215= 32768 216= 65536 217= 131072 218= 262144 219= 524288 220= 1048576 221= 2097152 222= 4194304 223= 8388608 224=16777216 225= 33554432 226= 67108864 227= 134217728 228= 268435456 229= 536870912 230= 1073741824 231= 2147483648 232=4294967296 Power table

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