tailieunhanh - Chapter 3: IP Subnetting and Variable Length Subnet Masks(VLSM)

How to Creat Subnets 如何划分子网?首先要熟记 2 的幂:2 的 0 次方到 9 次方的值分别为:1,2,4,8,16,32,64,128,256 和 这个意味划分越多的子网,主机将越少 | Chapter3 IP Subnetting and Variable Length Subnet Masks VLSM Subnetting Basics AI V subnetting Wftft ftS 2 ftlWftf afr a How to Creat Subnets WWI tMÜ 2 W 2 W 0 9 ftftWWJJft 1 2 4 8 16 32 64 128 256 ft T MWfmHft miR WM wms Mw Subnet Masks ftI ÆftWJ IP fWWWAIMft Wftft ftM 1 ft 0 ft 32 ft ftft 1 Wftft I ftI H 3IA 1 WWItëft default subnet mask .A IP MftWMAAI ftft B Wft C Wft Classless Inter-Domain Routing CIDR CIDR Wft lWÉ ISP OMWWffiÄJSP fêftft ft 1 ftft block size ftftW 28 ftft ftftftftftWftI ftft ft 28 ftft ftftft 1 ft 32ÆftftftftftftW 1 âM W A ftft B ftftSft Mft ftftÆWft ft 30 A-- 2 ftftftftft CIDR ft 1. ftft 8 A ftftMA ft 2. ftft 9 3. ftft 10 4. ftft 11 5. ftft 12 6. ftft 13 7. ftft 14 8. ftft 15 9. ftft 16 B ftftMA ft 10. ftft 17 11. ftft 18 12. 19 13. 20 14. 21 15. 22 16. 23 17. 24 C t O 18. 25 19. 26 20. 27 21. 28 22. 29 23. 30 Subnetting Class A B C Address W l ft Ai fe 1 Wft l WA A l 2 ft x -2 x W BP 2 A 1 ft A 2. W M 2 ft y -2 y ftft W 2 MA 0 ftW 3. A A A A 256-10 Mft block size base number 4. iftrmtftM rmtft T i -1 5. l ftW WJA l ft A 0 A 1 ftftWmmm w 1 A m TA i -2 BPrmtft-1 W O AlftM AM C W l IlW 26 1. l 2 2-2 2 2. 2 ft 6 -2 62 3. A block size 256-192 64 A A - A 4. rWW TA l -1 IA 2 AI ftr tW lJM 5. MHM M-fTlft tM lj A- A IJ B M 1 HW l fiB 18 1. l 2 2-2 2 2. 2 ft 14 -2 16382 3. A block size 256-192 64 WA TI A 1 A 4. r Mtt T TI 2 AAllftAWWA lJA .