A simple subnetmask calculator

Latest Version

Version
2.0
Update
May 18, 2024
Size
32.89KiB
Developer
Category
Users
47
Rating
1 ★
Manifest Version
3
Web Store Status
Languages Support
日本語
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Permissions
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Subnetmask Calculator Extension

日本語
IP Address Subnet Calculator
IPアドレス、サブネットマスクを簡単に計算できるツールです。このツールを使用することで、ネットワークの設定や管理が効率的に行えます。特にCisco機器のACL(アクセス制御リスト)で使用するワイルドカードマスクの一覧も提供しています。

機能:

IPアドレスの入力とサブネットマスクの計算
ネットワークアドレス、ブロードキャストアドレス、使用可能なIPアドレスの数を表示
Cisco ACLで使用するワイルドカードマスクの参照
このツールは、ネットワークエンジニアやシステム管理者に必要最低限の機能を提供します。

English
IP Address Subnet Calculator
This tool allows you to easily calculate IP addresses and subnet masks. By using this tool, you can efficiently manage and configure your network. It is especially useful for providing a list of wildcard masks used in Cisco device ACLs (Access Control Lists).

Features:

Input IP address and calculate subnet mask
Display network address, broadcast address, and the number of usable IP addresses
Reference wildcard masks used in Cisco ACLs
This tool offers essential functionalities for network engineers and system administrators.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Subnetmask Calculator", "description": "A simple subnetmask calculator", "version": "2.0", "permissions": [], "action": { "default_popup": "index.html", "default_icon": { "16": "icon.png", "48": "icon.png", "128": "icon.png" } }, "icons": { "16": "icon.png", "48": "icon.png", "128": "icon.png" }}
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How to download and manually install Subnetmask Calculator extension for Chrome

Looking for a way to install Subnetmask Calculator extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Subnetmask Calculator extensions manually, this article outlines two simple methods to effortlessly install Subnetmask Calculator extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Subnetmask Calculator extension and manually install through Drag &Drop

If you ever need to manually install a Subnetmask Calculator extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Subnetmask Calculator Extension by clicking the "Download CRX" button on the website.

Look for the Subnetmask Calculator extension you wish to install. Go to the website and download the Subnetmask Calculator extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Subnetmask Calculator extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Subnetmask Calculator extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Subnetmask Calculator extension for Chrome and install in Developer Mode

This is another method to install Subnetmask Calculator extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Subnetmask Calculator extension file

Select and download the Subnetmask Calculator extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Subnetmask Calculator extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Subnetmask Calculator extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Subnetmask Calculator extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Subnetmask Calculator extension in 2 ways. We hope this guide proves helpful.

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