caption: Introduction Wireshark is a free software tool to capture and analyse network packets (aka a 'packet sniffer').
exif: {"Image DocumentName": "Introduction Wireshark is a free software tool to capture and analyse network packets (aka a \u2018packet sniffer\u2019).", "Image ImageDescription": "Wireshark captures all packets that go past your NIC and displays the packets in a way that they can be analysed. Wireshark is free and available on  What is Wireshark? Wireshark takes control of the NIC of a PC/laptop and listens to packets sent over its LAN segment. In an IP network, you computer\u2019s NIC usually ignores any messages not intended for broadcast or specifically for your IP address and/or hardware address. Wireshark reads each and every packet that goes past your NIC. These packets are displayed inside Wireshark and can be reviewed and analysed from inside the software. The packets and their contents can be saved to a log file and can also be reviewed afterwards. Network packets. NIC. Network packets.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}