IPv6SubnetCalc

IPv6SubnetCalc is a handy network tool that helps you calculate IP addresses using the IPv6 format based on your network's address. It's designed to make your life easier when working with IPs.

Supported RFCs

This tool supports a bunch of RFC standards like RFC4291, RFC3849, RFC4193, and many more. These standards are super important for making sure everything runs smoothly in networking.

Easy Setup

Since IPv6SubnetCalc is made with Java, you’ll need to have the Java Runtime Environment installed on your computer. The best part? You don’t even need to install it! Just double-click the .jar file to get it running. Plus, it doesn’t mess with your system registry or create extra files on your computer.

User-Friendly Interface

The interface is pretty straightforward too. It uses a Java Swing GUI that shows a default address and mask right off the bat to help you get started quickly. You can easily change the address and choose a prefix mask ranging from /1 to /64.

Advanced Features

If you need even more flexibility, you can set the mask bigger than 64 bits—up to 120 or 127 bits! It also considers mEUI-64 (Modified Extended Unique Identifier - 64) for /54 networks, so you're well-covered.

How Calculations Work

You just hit the button that shows a graphical representation of binary code for calculations. A popup will display all the bits in IPv6 mode, plus you'll see key details like address type, network ID, first and last usable addresses, and how many usable addresses there are.

Subnet Information

The calculator gives you useful data like predefined router anycast addresses, reserved anycast addresses, number of subnets available, and MAC addresses (decoded as per RFC2464). However, there’s no option yet for copying data to clipboard or saving it directly into files.

Your Go-To Tool!

Overall, IPv6SubnetCalc is a user-friendly application that makes calculating IPv6 subnet addresses easy and efficient!