Pejman Moghadam / General

Subnet basics

Public domain


   IP   : 192.168.100.57
Netmask : 255.255.255.240

  /                    /                                   /
 |  57  = 00111001    |    NetID   :  00110000  = 48      |    NetID   : 192.168.100.48
<                    <                                   <
 |  240 = 11110000    |  Broadcast :  00111111  = 63      |  Broadcast : 192.168.100.63
  \                    \                                   \

  /
 | 256 - 240 = 16
 | 57  \ 16  = 3
 | 3   * 16  = 48  (NetID)
 | 48  + 16  - 1  =  63 (Broadcast)
  \


  | IP  | Mask | Prefix |
--|-----|------|--------|--
  | 256 | 0    |  /24   |
  | 128 | 128  |  /25   |
  | 64  | 192  |  /26   |
  | 32  | 224  |  /27   |
  | 16  | 240  |  /28   |
  | 8   | 248  |  /29   |
  | 4   | 252  |  /30   |

BY: Pejman Moghadam
TAG: subnet
DATE: 2011-03-07 19:10:56


Pejman Moghadam / General [ TXT ]