1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

IP Subnet 0

Discussion in 'General Cisco Certifications' started by morph, Mar 13, 2010.

  1. morph

    morph Byte Poster

    204
    3
    22
    I just want to be clear i've got this right in my head - dont want to slip up on this :
    Subnet zero is on by defualt in later editions of IOS - which means say i had the following :

    192.168.1.0
    255.255.255.192

    i can use the subnet's 192.168.1.0 - 192.168.1.63 and 192.168.1.192 - 192.168.1.255, if its not on i cant use these subnets ?
     
    Certifications: Network +, ITIL Foundation, CCENT, CCNA
    WIP: server/ccna security
  2. Unemployed Diogenes

    Unemployed Diogenes Nibble Poster

    84
    0
    33
    subnet 0 = 192.168.1. 00 000000
    - 00 111111

    so 192.168.1.0-192.168.63 = subnet 0
     
    Certifications: A+, Bachelor IT
    WIP: CCNA
  3. morph

    morph Byte Poster

    204
    3
    22
    but the rule also applies to the last subnet as well - all 1111's? hence the reason u take 2 to the power of whatever - 2 ?
     
    Certifications: Network +, ITIL Foundation, CCENT, CCNA
    WIP: server/ccna security
  4. billyr

    billyr Kilobyte Poster

    262
    20
    35
    Correct the rule applied to both first and last subnets.
     
    Certifications: CCNP, CCSI, MCSE W2k/W2k3, MCITP_SA
    WIP: Taking it easy for a while.

Share This Page

Loading...