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Estinet is an open-source Ethernet network simulator written in Java. It simulates standard Ethernet packets and includes the ability to generate arbitrary Ethernet frames for simulation purposes. Estinet can simulate Ethernet networks of varied size, demonstrating behavior typical of real-life networks. This post will show you how to install EstiNet, what it's capable of, and how to use it with other programs for debugging or configuring your own design. This post assumes basic understanding of TCP/IP networking concepts such as IP address, subnet masking, broadcast addresses, etc., but goes into more detail on some topics that are commonly misunderstood or not well understood by people new to networking. First, install your software. You can download the EstiNet source code from here. If you are using Linux, you must also install the current version of Java (version 6 or higher). To install EstiNet, go to one of these directories: This will only install the program files, not a necessary JAR file for Java bindings. To create a JAR file so you can use EstiNet with java.net.Socket objects installed in your system, do this: Show that you can run it by typing this at a UNIX-like system prompt:Estinet> java -jar estinet-0.1-Final. jar Note: Replace '0.1-Final.jar' with the JAR file you made. Note: To run EstiNet on Windows, just run the jar file and it will be installed in your system. You can then run EstiNet using the java command with this syntax: java -jar estinet-0.1-Final.jar This runs EstiNet with default options and creates a configuration file called "default_config" in your home directory (the user folder). Now you can configure EstiNet by running it again and typing 'config'. This will take you to a menu with 3 options: EstiNet Network Simulator's main menu. You should know the following information before you change any configurations: EstiNet Network Simulator's configuration menu. Use this configuration menu to change your network's name, the number of hosts, and the MAC address of each host. Use "up" and "down" to cycle through these options. Now you can edit a host. If you know a computer's IP address, subnet mask, and broadcast address, type them in now under each option for IP Address, Subnet Mask, and Broadcast Address respectively. The IP Address option must be unique for every host. The Subnet Mask option is used to calculate what IP addresses are on your network (called a subnetwork). You can use the same Subnet Mask for all computers on your network. 1 means "all bits match", so 1, 6, and 9 are typically not allowed. The Broadcast Address option is used to send packages to your entire network. Typically the broadcast address is one less than the last IP address in the subnet (i.e., 192.0.2.255). You can also use "up" and "down" to change these options. Now you will be asked for a Ping interval (in seconds). Ping is how often packets are sent between computers on your network (in this example, between 2 hosts). cfa1e77820
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