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In C7 you can simply apply this formula...<br />
<br />

<pre><code id="code-20-40665876-1">=B7&amp;&quot;/&quot;&amp;RIGHT(B8,2)</code></pre>
<br />
In additional another safe way to do this since IP address at the end can be 3 characters as well you can do this as well to ensure it picks up correctly irrespective if its 3 characters or 2 characters...<br />
<br />

<pre><code id="code-20-40665876-2">=B7&amp;&quot;/&quot;&amp;SUBSTITUTE(RIGHT(B8,3),&quot;.&quot;,&quot;&quot;)</code></pre>
<br />
Assuming the last ip address will be of 2 digits...<br />
<br />
Saurabh...
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In C7 you can simply apply this formula...



=B7&"/"&RIGHT(B8,2)


In additional another safe way to do this since IP address at the end can be 3 characters as well you can do this as well to ensure it picks up correctly irrespective if its 3 characters or 2 characters...



=B7&"/"&SUBSTITUTE(RIGHT(B8,3),".","")


Assuming the last ip address will be of 2 digits...

Saurabh...

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This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.

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<div class="content wysiwyg-content">
I have a spreadsheet (downloaded from a different site) that allows you to convert CIDR notation to ranges, masks, and other details, and I am trying to figure out if I can use a function to convert a range to CIDR. I don't have the knowledge to convert some of the scripts/functions to help.<br />
<br />
What I'd like is a function that takes 2 cells and provides CIDR notation in a 3rd.<br />
<br />
I've attached examples.<br />
<a href="https://filedb.experts-exchange.com/incoming/2015/03_w11/903338/IP-Calculator.xlsm" target="_blank" class="file-inline" title="IP-Calculator.xlsm (29 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>IP-Calculator.xlsm</a>
</div>
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IP-Calculator.xlsm

I have a spreadsheet (downloaded from a different site) that allows you to convert CIDR notation to ranges, masks, and other details, and I am trying to figure out if I can use a function to convert a range to CIDR. I don't have the knowledge to convert some of the scripts/functions to help.

What I'd like is a function that takes 2 cells and provides CIDR notation in a 3rd.

I've attached examples.

Converting IP Range to CIDR in Excel

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

TCP/IP

Visual Basic for Applications (VBA) enables building user-defined functions (UDFs), automating processes and accessing Windows API and other low-level functionality through dynamic-link libraries (DLLs). VBA is closely related to Visual Basic and uses the Visual Basic Runtime Library, but it can normally only run code within a host application rather than as a standalone program. It can, however, be used to control one application from another via OLE Automation. VBA is built into most Microsoft Office applications.