Subnet IDs

Bolton07Bolton07 Member Posts: 87 ■■□□□□□□□□
When subnetting what does the term Subnet ID mean?

I understand how to subnet, just a bit confused what the term subnet ID means.

Seem to be finding slightly different definitions.

Comments

  • miller811miller811 Member Posts: 897
    Bolton07 wrote: »
    When subnetting what does the term Subnet ID mean?

    I understand how to subnet, just a bit confused what the term subnet ID means.

    Seem to be finding slightly different definitions.

    I think you are looking for network ID.... or that is way I have always looked at it. You have two unusable addresses under normal circumstances,
    the network address, and the broadcast address

    192.168.100.0 /24 is a network ID (not a valid IP address)
    it can be broken into two networks if you used a /25
    192.168.100.0 /25
    192.168.100.128 /25

    192.168.100.0 /24 becomes the following if a /26 is applied to it
    192.168.100.0 /26
    192.168.100.64 /26
    192.168.100.128 /26
    192.168.100.192 /26
    I don't claim to be an expert, but I sure would like to become one someday.

    Quest for 11K pages read in 2011
    Page Count total to date - 1283
  • Bolton07Bolton07 Member Posts: 87 ■■□□□□□□□□
    192.168.100.0 /24 becomes the following if a /26 is applied to it

    So would all of the below be subnet IDs then?

    192.168.100.0 /26
    192.168.100.64 /26
    192.168.100.128 /26
    192.168.100.192 /26
  • miller811miller811 Member Posts: 897
    Bolton07 wrote: »
    192.168.100.0 /24 becomes the following if a /26 is applied to it

    So would all of the below be subnet IDs then?

    192.168.100.0 /26
    192.168.100.64 /26
    192.168.100.128 /26
    192.168.100.192 /26

    yes, or network IDs interchangably
    I don't claim to be an expert, but I sure would like to become one someday.

    Quest for 11K pages read in 2011
    Page Count total to date - 1283
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