1. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members.

CIDR notation help - allow IP range - Exch. Server 2007

Discussion in 'Web & Email' started by chronk, Apr 1, 2010.

Thread Status:
Not open for further replies.
  1. chronk

    chronk Thread Starter

    Joined:
    May 24, 2007
    Messages:
    152
    Need help with allow list for Exchange Server 2007.

    Need to allow an IP range - and do not know how to transfer the CIDR notation information into the IP range.
    Anyone know the math behind this?

    Specifically - I want to allow the IP range:
    65.52.0.0 to 65.55.255.255

    Would I enter 65.52.0.0/22 ( not sure of the last number to enter to allow between 52.0.0 and 55.255.255.
    Or would I need to enter 65.52.0.0/nn (nn = unknown -to me- number)
    Then 65.53.0.0/nn etc - as i am unsure of the math - not sure if the 65.52 through 65.55 range can be expressed in one
    entry.

    Found this reference
    "The CIDR notation 192.168.0.0/24 would be written as 192.168.0.0/255.255.255.0:
    at:
    http://en.wikipedia.org/wiki/CIDR_notation

    Okay - so if the .0.0/24 ranges to .255.255.0 - then how would one bump up the last octet - from 0 to the desired 255?


    Thank You for looking!
     
As Seen On
As Seen On...

Welcome to Tech Support Guy!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

If you're not already familiar with forums, watch our Welcome Guide to get started.

Join over 733,556 other people just like you!

Thread Status:
Not open for further replies.

Short URL to this thread: https://techguy.org/914136

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice