Packet capture is supported on physical interfaces, reth interfaces, and tunnel interfaces, such as gr, ip, and lsq-/ls. This guide shows you how to install it, choose the right interface, capture packets, use filters, and begin reading network traffic without getting lost in the details. Captures real-time network traffic using promiscuous mode and stores it in pcap files for. It lets you interactively browse packet data from a live network or from a previously saved capture file. These packets contain critical information such as: Wireshark allows you to capture these packets in real time and analyse their contents to gain insights into network behaviour.