Lesson 5

Dates: 6/12/2017
Linux networking
Linux System Administration


Network/Subnet splitting

  • Subnet mask can be used to split a given network adress space into subnets.

  • Example:
    
    
    Original Network:  128.6.34.0 / 255.255.255.0   
    
    can be split into 8 subnets by changing the Netmask to: 
    
    255.255.255.224 (or 11111111.11111111.11111111.11100000) (or /27)                                         
    
    Subnet: 128.6.34.0 / 255.255.255.224 Subnet: 128.6.34.32 / 255.255.255.224 Subnet: 128.6.34.64 / 255.255.255.224 Subnet: 128.6.34.96 / 255.255.255.224 Subnet: 128.6.34.128 / 255.255.255.224 Subnet: 128.6.34.160 / 255.255.255.224 Subnet: 128.6.34.192 / 255.255.255.224 Subnet: 128.6.34.224 / 255.255.255.224

  • Max number of hosts on each subnet: 30 = 32 - 2
  • The gateway address should be set within each subnet.


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