Navrhnite adresovú schému pre sieť s IP adresou 131. 16. 0. 0 / 20 tak, aby bolo možné mať v danej sieti 27 počítačov a čo najviac podsietí.
Sieť 131. 16. 0. 0/20 musíme rozdeliť na rovnako veľké podsiete, do ktorých sa zmestí 27 PC. Pretože v každej sieti sú dve adresy, ktoré nemôžeme použiť (adresa siete a broadcastová), potrebujeme k tomuto počtu pripočítať 2 adresy a teda hľadáme sieť, v ktorej bude minimálne 27+2=29 IP adries. Pretože počítače vnímajú IP adresy v dvojkovej sústave, hľadáme najbližšiu vyššiu mocninu dvojky. K nášmu počtu hľadaných IP adries 29 je najbližšia vyššia mocnina dvojky č. 32 , čo je 25. Náš prefix pre vytvorené siete bude 32-5=/27. Vytvorené siete budú mať dokopy 32 IP adries, z toho 30 bude použiteľných pre zariadenia v sieti a zvyšné 2 sú adresa siete a broadcastová adresa. Adresy jednotlivých sietí budú rásť vždy o číslo 32 .
| Podsieť | Adresa posiete | Adresa prvého PC | Adresa posledného PC | Broadcast podsiete |
|---|---|---|---|---|
| 0. | 131.016.000.000/27 | 131.016.000.001 | 131.016.000.030 | 131.016.000.031 |
| 1. | 131.016.000.032/27 | 131.016.000.033 | 131.016.000.062 | 131.016.000.063 |
| 2. | 131.016.000.064/27 | 131.016.000.065 | 131.016.000.094 | 131.016.000.095 |
| 3. | 131.016.000.096/27 | 131.016.000.097 | 131.016.000.126 | 131.016.000.127 |
| 4. | 131.016.000.128/27 | 131.016.000.129 | 131.016.000.158 | 131.016.000.159 |
| 5. | 131.016.000.160/27 | 131.016.000.161 | 131.016.000.190 | 131.016.000.191 |
| 6. | 131.016.000.192/27 | 131.016.000.193 | 131.016.000.222 | 131.016.000.223 |
| 7. | 131.016.000.224/27 | 131.016.000.225 | 131.016.000.254 | 131.016.000.255 |
| 8. | 131.016.001.000/27 | 131.016.001.001 | 131.016.001.030 | 131.016.001.031 |
| 9. | 131.016.001.032/27 | 131.016.001.033 | 131.016.001.062 | 131.016.001.063 |
| 10. | 131.016.001.064/27 | 131.016.001.065 | 131.016.001.094 | 131.016.001.095 |
| 11. | 131.016.001.096/27 | 131.016.001.097 | 131.016.001.126 | 131.016.001.127 |
| 12. | 131.016.001.128/27 | 131.016.001.129 | 131.016.001.158 | 131.016.001.159 |
| 13. | 131.016.001.160/27 | 131.016.001.161 | 131.016.001.190 | 131.016.001.191 |
| 14. | 131.016.001.192/27 | 131.016.001.193 | 131.016.001.222 | 131.016.001.223 |
| 15. | 131.016.001.224/27 | 131.016.001.225 | 131.016.001.254 | 131.016.001.255 |
| 16. | 131.016.002.000/27 | 131.016.002.001 | 131.016.002.030 | 131.016.002.031 |
| 17. | 131.016.002.032/27 | 131.016.002.033 | 131.016.002.062 | 131.016.002.063 |
| 18. | 131.016.002.064/27 | 131.016.002.065 | 131.016.002.094 | 131.016.002.095 |
| 19. | 131.016.002.096/27 | 131.016.002.097 | 131.016.002.126 | 131.016.002.127 |
| 20. | 131.016.002.128/27 | 131.016.002.129 | 131.016.002.158 | 131.016.002.159 |
| 21. | 131.016.002.160/27 | 131.016.002.161 | 131.016.002.190 | 131.016.002.191 |
| 22. | 131.016.002.192/27 | 131.016.002.193 | 131.016.002.222 | 131.016.002.223 |
| 23. | 131.016.002.224/27 | 131.016.002.225 | 131.016.002.254 | 131.016.002.255 |
| 24. | 131.016.003.000/27 | 131.016.003.001 | 131.016.003.030 | 131.016.003.031 |
| 25. | 131.016.003.032/27 | 131.016.003.033 | 131.016.003.062 | 131.016.003.063 |
| 26. | 131.016.003.064/27 | 131.016.003.065 | 131.016.003.094 | 131.016.003.095 |
| 27. | 131.016.003.096/27 | 131.016.003.097 | 131.016.003.126 | 131.016.003.127 |
| 28. | 131.016.003.128/27 | 131.016.003.129 | 131.016.003.158 | 131.016.003.159 |
| 29. | 131.016.003.160/27 | 131.016.003.161 | 131.016.003.190 | 131.016.003.191 |
| 30. | 131.016.003.192/27 | 131.016.003.193 | 131.016.003.222 | 131.016.003.223 |
| 31. | 131.016.003.224/27 | 131.016.003.225 | 131.016.003.254 | 131.016.003.255 |
| 32. | 131.016.004.000/27 | 131.016.004.001 | 131.016.004.030 | 131.016.004.031 |
| 33. | 131.016.004.032/27 | 131.016.004.033 | 131.016.004.062 | 131.016.004.063 |
| 34. | 131.016.004.064/27 | 131.016.004.065 | 131.016.004.094 | 131.016.004.095 |
| 35. | 131.016.004.096/27 | 131.016.004.097 | 131.016.004.126 | 131.016.004.127 |
| 36. | 131.016.004.128/27 | 131.016.004.129 | 131.016.004.158 | 131.016.004.159 |
| 37. | 131.016.004.160/27 | 131.016.004.161 | 131.016.004.190 | 131.016.004.191 |
| 38. | 131.016.004.192/27 | 131.016.004.193 | 131.016.004.222 | 131.016.004.223 |
| 39. | 131.016.004.224/27 | 131.016.004.225 | 131.016.004.254 | 131.016.004.255 |
| 40. | 131.016.005.000/27 | 131.016.005.001 | 131.016.005.030 | 131.016.005.031 |
| 41. | 131.016.005.032/27 | 131.016.005.033 | 131.016.005.062 | 131.016.005.063 |
| 42. | 131.016.005.064/27 | 131.016.005.065 | 131.016.005.094 | 131.016.005.095 |
| 43. | 131.016.005.096/27 | 131.016.005.097 | 131.016.005.126 | 131.016.005.127 |
| 44. | 131.016.005.128/27 | 131.016.005.129 | 131.016.005.158 | 131.016.005.159 |
| 45. | 131.016.005.160/27 | 131.016.005.161 | 131.016.005.190 | 131.016.005.191 |
| 46. | 131.016.005.192/27 | 131.016.005.193 | 131.016.005.222 | 131.016.005.223 |
| 47. | 131.016.005.224/27 | 131.016.005.225 | 131.016.005.254 | 131.016.005.255 |
| 48. | 131.016.006.000/27 | 131.016.006.001 | 131.016.006.030 | 131.016.006.031 |
| 49. | 131.016.006.032/27 | 131.016.006.033 | 131.016.006.062 | 131.016.006.063 |
| ... | ... | ... | ... | ... |
| 79. | 131.016.009.224/27 | 131.016.009.225 | 131.016.009.254 | 131.016.009.255 |
| 80. | 131.016.010.000/27 | 131.016.010.001 | 131.016.010.030 | 131.016.010.031 |
| 81. | 131.016.010.032/27 | 131.016.010.033 | 131.016.010.062 | 131.016.010.063 |
| 82. | 131.016.010.064/27 | 131.016.010.065 | 131.016.010.094 | 131.016.010.095 |
| 83. | 131.016.010.096/27 | 131.016.010.097 | 131.016.010.126 | 131.016.010.127 |
| 84. | 131.016.010.128/27 | 131.016.010.129 | 131.016.010.158 | 131.016.010.159 |
| 85. | 131.016.010.160/27 | 131.016.010.161 | 131.016.010.190 | 131.016.010.191 |
| 86. | 131.016.010.192/27 | 131.016.010.193 | 131.016.010.222 | 131.016.010.223 |
| 87. | 131.016.010.224/27 | 131.016.010.225 | 131.016.010.254 | 131.016.010.255 |
| 88. | 131.016.011.000/27 | 131.016.011.001 | 131.016.011.030 | 131.016.011.031 |
| 89. | 131.016.011.032/27 | 131.016.011.033 | 131.016.011.062 | 131.016.011.063 |
| 90. | 131.016.011.064/27 | 131.016.011.065 | 131.016.011.094 | 131.016.011.095 |
| 91. | 131.016.011.096/27 | 131.016.011.097 | 131.016.011.126 | 131.016.011.127 |
| 92. | 131.016.011.128/27 | 131.016.011.129 | 131.016.011.158 | 131.016.011.159 |
| 93. | 131.016.011.160/27 | 131.016.011.161 | 131.016.011.190 | 131.016.011.191 |
| 94. | 131.016.011.192/27 | 131.016.011.193 | 131.016.011.222 | 131.016.011.223 |
| 95. | 131.016.011.224/27 | 131.016.011.225 | 131.016.011.254 | 131.016.011.255 |
| 96. | 131.016.012.000/27 | 131.016.012.001 | 131.016.012.030 | 131.016.012.031 |
| 97. | 131.016.012.032/27 | 131.016.012.033 | 131.016.012.062 | 131.016.012.063 |
| 98. | 131.016.012.064/27 | 131.016.012.065 | 131.016.012.094 | 131.016.012.095 |
| 99. | 131.016.012.096/27 | 131.016.012.097 | 131.016.012.126 | 131.016.012.127 |
| 100. | 131.016.012.128/27 | 131.016.012.129 | 131.016.012.158 | 131.016.012.159 |
| 101. | 131.016.012.160/27 | 131.016.012.161 | 131.016.012.190 | 131.016.012.191 |
| 102. | 131.016.012.192/27 | 131.016.012.193 | 131.016.012.222 | 131.016.012.223 |
| 103. | 131.016.012.224/27 | 131.016.012.225 | 131.016.012.254 | 131.016.012.255 |
| 104. | 131.016.013.000/27 | 131.016.013.001 | 131.016.013.030 | 131.016.013.031 |
| 105. | 131.016.013.032/27 | 131.016.013.033 | 131.016.013.062 | 131.016.013.063 |
| 106. | 131.016.013.064/27 | 131.016.013.065 | 131.016.013.094 | 131.016.013.095 |
| 107. | 131.016.013.096/27 | 131.016.013.097 | 131.016.013.126 | 131.016.013.127 |
| 108. | 131.016.013.128/27 | 131.016.013.129 | 131.016.013.158 | 131.016.013.159 |
| 109. | 131.016.013.160/27 | 131.016.013.161 | 131.016.013.190 | 131.016.013.191 |
| 110. | 131.016.013.192/27 | 131.016.013.193 | 131.016.013.222 | 131.016.013.223 |
| 111. | 131.016.013.224/27 | 131.016.013.225 | 131.016.013.254 | 131.016.013.255 |
| 112. | 131.016.014.000/27 | 131.016.014.001 | 131.016.014.030 | 131.016.014.031 |
| 113. | 131.016.014.032/27 | 131.016.014.033 | 131.016.014.062 | 131.016.014.063 |
| 114. | 131.016.014.064/27 | 131.016.014.065 | 131.016.014.094 | 131.016.014.095 |
| 115. | 131.016.014.096/27 | 131.016.014.097 | 131.016.014.126 | 131.016.014.127 |
| 116. | 131.016.014.128/27 | 131.016.014.129 | 131.016.014.158 | 131.016.014.159 |
| 117. | 131.016.014.160/27 | 131.016.014.161 | 131.016.014.190 | 131.016.014.191 |
| 118. | 131.016.014.192/27 | 131.016.014.193 | 131.016.014.222 | 131.016.014.223 |
| 119. | 131.016.014.224/27 | 131.016.014.225 | 131.016.014.254 | 131.016.014.255 |
| 120. | 131.016.015.000/27 | 131.016.015.001 | 131.016.015.030 | 131.016.015.031 |
| 121. | 131.016.015.032/27 | 131.016.015.033 | 131.016.015.062 | 131.016.015.063 |
| 122. | 131.016.015.064/27 | 131.016.015.065 | 131.016.015.094 | 131.016.015.095 |
| 123. | 131.016.015.096/27 | 131.016.015.097 | 131.016.015.126 | 131.016.015.127 |
| 124. | 131.016.015.128/27 | 131.016.015.129 | 131.016.015.158 | 131.016.015.159 |
| 125. | 131.016.015.160/27 | 131.016.015.161 | 131.016.015.190 | 131.016.015.191 |
| 126. | 131.016.015.192/27 | 131.016.015.193 | 131.016.015.222 | 131.016.015.223 |
| 127. | 131.016.015.224/27 | 131.016.015.225 | 131.016.015.254 | 131.016.015.255 |