Wireshark is the world’s leading network traffic analyzer, and an essential tool for any security professional or systems administrator. This free software lets you analyze network traffic in real time, and is often the best tool for troubleshooting issues on your network.
The whole world is digitalized and connected over the network. Packets, which are the atomic unit of information in packet-switched communication networks, are exchanged between the nodes (a node might be an end device, a router or a data generating device, etc.). The process of transferring these packets of information from their source node to the destination node with one or more hops in between along the most optimum path is called as ‘Routing’. Routers and switches are the devices that are used for the purpose which work on the routing protocols and algorithms they are configured with. The routing of packets is taken care of by the L3 layer or the network layer of the OSI Reference Model.