Network ranges - are my calculations correct?

binaryhatbinaryhat Member Posts: 129
Class B = 255.255.0.0
170.50.0.0
1000 networks



A) 1000 networks in binary

10 bits

B) Increment

11111111.11111111.11111111.11000000

64 is increment
255.255.255.192 = /26

C) Network ranges


170.50.0.0 – 170.50.63.255
170.50.64.0 – 170.50.127255
170.50.128.0 – 170.50.191.255
170.50.192.0 – 170.50.255.255
170.50.1.0 - – 170.50.1.63
170.50.1.64 – 170.50.1.127
170.50.1.128 – 170.50.1.191
170.50.1.192 – 170.50.1.255
...
..


Are my network ranges correct?
Currently working on:
ICND1 - TBD
Book: CCENT/CCNA ICND1 100-101 Official Cert Guide
Equipment: Packet Tracer, GNS3
Supplement Material: Youtube, Google, Boson ExamSim-Max, CBTNuggets

Comments

  • late_collisionlate_collision Member Posts: 146
    If I understand your question correctly

    These are incorrect. You have the right idea, but these are 18 bit networks.
    binaryhat wrote: »
    170.50.0.0 – 170.50.63.255
    170.50.64.0 – 170.50.127255
    170.50.128.0 – 170.50.191.255
    170.50.192.0 – 170.50.255.255


    These look correct:
    binaryhat wrote: »
    170.50.1.0 - – 170.50.1.63
    170.50.1.64 – 170.50.1.127
    170.50.1.128 – 170.50.1.191
    170.50.1.192 – 170.50.1.255
  • HAMPHAMP Member Posts: 163
    If I understand the question:

    170.50.0.0

    170.50.0.1 – 170.50.0.63
    170.50.0.64---- 170.50.0.65 – 170.50.0.127
    170.50.0.128--- 170.50.0.129 – 170.50.0.191
    170.50.0.192--- 170.50.0.193 – 170.50.0.255
    170.50.1.0
    170.50.1.1 – 170.50.1.63
    170.50.1.64
    170.50.1.65 – 170.50.1.127
    170.50.1.128
    170.50.1.129 – 170.50.1.191
    170.50.1.192
    170.50.1.193 – 170.50.1.255
    170.50.2.0
    170.50.2.1 – 170.50.2.63
    170.50.2.64
    170.50.2.65 – 170.50.2.127
    170.50.2.128
    170.50.2.129 – 170.50.2.191
    170.50.2.192
    170.50.2.193 – 170.50.2.255

    The last column being broadcast, and not host
  • binaryhatbinaryhat Member Posts: 129
    HAMP wrote: »
    If I understand the question:

    170.50.0.0

    170.50.0.1 – 170.50.0.63
    170.50.0.64---- 170.50.0.65 – 170.50.0.127
    170.50.0.128--- 170.50.0.129 – 170.50.0.191
    170.50.0.192--- 170.50.0.193 – 170.50.0.255
    170.50.1.0
    170.50.1.1 – 170.50.1.63
    170.50.1.64
    170.50.1.65 – 170.50.1.127
    170.50.1.128
    170.50.1.129 – 170.50.1.191
    170.50.1.192
    170.50.1.193 – 170.50.1.255
    170.50.2.0
    170.50.2.1 – 170.50.2.63
    170.50.2.64
    170.50.2.65 – 170.50.2.127
    170.50.2.128
    170.50.2.129 – 170.50.2.191
    170.50.2.192
    170.50.2.193 – 170.50.2.255

    The last column being broadcast, and not host


    I think these are incorrect. Not sure.

    Can someone else chime in...?
    Currently working on:
    ICND1 - TBD
    Book: CCENT/CCNA ICND1 100-101 Official Cert Guide
    Equipment: Packet Tracer, GNS3
    Supplement Material: Youtube, Google, Boson ExamSim-Max, CBTNuggets
  • Dieg0MDieg0M Member Posts: 861
    Those are correct for /26 networks
    Follow my CCDE journey at www.routingnull0.com
  • OfWolfAndManOfWolfAndMan Member Posts: 923 ■■■■□□□□□□
    binaryhat wrote: »
    I think these are incorrect. Not sure.

    Can someone else chime in...?

    Those are right. If you want ranges from your example in C to work, you need a 255.255.192.0 mask.
    :study:Reading: Lab Books, Ansible Documentation, Python Cookbook 2018 Goals: More Ansible/Python work for Automation, IPSpace Automation Course [X], Build Jenkins Framework for Network Automation []
  • binaryhatbinaryhat Member Posts: 129
    I see it now...thanks!
    Currently working on:
    ICND1 - TBD
    Book: CCENT/CCNA ICND1 100-101 Official Cert Guide
    Equipment: Packet Tracer, GNS3
    Supplement Material: Youtube, Google, Boson ExamSim-Max, CBTNuggets
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