What is NET-Simulator?

NET-Simulator

NET-Simulator is a super handy program made just for lecturers and students to help them get a grip on the basics of computer networks. If you're diving into networking, this tool can really make things clearer!

What Does NET-Simulator Do?

This program works with two important layers from the ISO OSI model: the 2nd layer (Data Link) and the 3rd layer (Network). Just so you know, it doesn't simulate the 1st layer, which means it won't cover electrical or physical specs for devices. Instead, it assumes that packets on the 2nd layer are sent through something like Ethernet.

Learning Goals with NET-Simulator

Using NET-Simulator, users can achieve some pretty cool learning goals:

• Understand how 2nd and 3rd layer switches work, along with passive hubs.


• Get hands-on experience with static IPv4 routing configuration.


• Learn about communication protocols like ARP, IPv4, and ICMP.


• Build skills in troubleshooting computer networks.

The Protocols in Action

NET-Simulator uses a simple Ethernet-like protocol at the Data Link layer. This protocol identifies devices using a unique six-byte MAC address. The uniqueness of each MAC address is managed by the NET-Simulator kernel itself. Interestingly, packets at this level are actually Java objects and don't have real-world equivalents!

Diving into Layer Three

Moving onto Layer Three, there's a basic version of the IPv4 protocol following RFC791 standards. To help match IP addresses to MAC addresses, there's an ARP service that relies on broadcast requests.

Your Troubleshooting Buddy

The simulator also includes a limited ICMP implementation based on RFC792, which allows you to use services like ping and traceroute. So if you're looking to sharpen your network skills, download NET-Simulator here!

How Download Works

Go to the Softpas website, press the 'Downloads' button, and pick the app you want to download and install—easy and fast!