Wireshark
Generated by DeepSeek V3.2Expansion Funnel Raw 65 → Dedup 29 → NER 15 → Enqueued 15
| Wireshark | |
|---|---|
 | |
| Name | Wireshark |
| Caption | Wireshark capturing network traffic |
| Developer | The Wireshark Foundation |
| Released | June 1998 |
| Latest release version | 4.2.5 |
| Latest release date | 22 May 2024 |
| Programming language | C, C++, Lua |
| Operating system | Cross-platform |
| Genre | Packet analyzer |
| License | GPL |
| Website | https://www.wireshark.org/ |
Wireshark is a free and open-source packet analyzer used for network troubleshooting, analysis, software and communications protocol development, and education. It allows users to capture and interactively browse the traffic running on a computer network, functioning as a critical tool for network administrators, security professionals, and software developers. Originally named Ethereal, the project was renamed Wireshark in 2006 due to trademark issues and is now maintained by the Wireshark Foundation.
Overview
Wireshark operates by capturing packets from a network interface or reading from a saved capture file, providing a detailed, multi-pane view of each packet's structure and contents. It is a cross-platform application, running on operating systems including Microsoft Windows, Linux, macOS, FreeBSD, and Solaris (operating system). The tool's core functionality is built around the libpcap and WinPcap libraries for packet capture, and it supports a vast array of network protocols for deep inspection. Its graphical user interface, known as the GTK toolkit, offers powerful filtering and search capabilities, making it a standard in fields like cybersecurity, digital forensics, and network engineering.
Features
The software provides a comprehensive set of features for deep packet inspection, including real-time capture from various network media like Ethernet, Wi-Fi, Bluetooth, and USB. It offers powerful display filters using a syntax similar to that of the BPF (Berkeley Packet Filter), allowing users to isolate specific traffic patterns. Advanced features include the ability to follow TCP streams, reconstruct HTTP sessions, perform expert information analysis to flag potential problems, and generate detailed statistics and graphs. Wireshark also supports coloring rules for packet highlighting and extensive protocol dissection, with the ability to export results in multiple formats including PCAP, CSV, and PostScript.
Usage
Primarily employed for network troubleshooting, Wireshark helps diagnose issues related to latency, packet loss, and misconfigured applications by examining the actual data traversing a network. In information security, it is used for detecting malicious activity, analyzing malware communication, and conducting penetration tests, often in conjunction with tools like Nmap and Metasploit. Educational institutions, including Stanford University and the Massachusetts Institute of Technology, utilize it to teach concepts of computer networking and protocol design. Its use is governed by legal and ethical considerations, as capturing traffic may be subject to laws like the Computer Fraud and Abuse Act in the United States.
Protocol support
Wireshark boasts dissectors for thousands of communication protocols, enabling the decoding and analysis of their fields and values. Core internet protocols like IP, IPv6, TCP, UDP, and ICMP are fully supported. It provides extensive analysis for application-layer protocols including HTTP, DNS, SMTP, DHCP, and SIP. Support also extends to specialized industrial and wireless protocols such as Modbus, CAN, Zigbee, and LTE signaling, with new dissectors regularly added by the global developer community.
History
The project began in 1998 when Gerald Combs, then working at Ethernet consulting firm, needed a tool for network analysis and started developing Ethereal. After Combs left his original employer in 2006, trademark rights to the name Ethereal were retained by the company, prompting the project's rebranding to Wireshark. Key development milestones include the integration of the WinPcap library for Windows support and the migration of the user interface to the GTK+ toolkit. The project's stewardship was formalized with the establishment of the non-profit Wireshark Foundation in 2021, ensuring its long-term sustainability and open development.
Development
Wireshark is developed by a large, global community of volunteers and is licensed under the GNU General Public License. Its source code is hosted on a Git repository, with contributions managed through a review process on Gerrit. Major development decisions are guided by a core group of maintainers, with Gerald Combs remaining the lead maintainer. The project holds an annual developer and user conference, SharkFest, often hosted at institutions like Stanford University. Development is focused on enhancing protocol support, improving performance and security, and maintaining compatibility with the latest standards from bodies like the Internet Engineering Task Force and the Institute of Electrical and Electronics Engineers.
Category:Free network analysis software Category:Free software programmed in C Category:Cross-platform free software