Wireshark is the world’s foremost and widely-used network protocol analyzer. It lets you see what’s happening on your network at a microscopic level and is the de facto (and often de jure) standard across many commercial and non-profit enterprises, government agencies, and educational institutions. Wireshark development thrives thanks to the volunteer contributions of networking experts around the globe and is the continuation of a project started by Gerald Combs in 1998.
- Deep inspection of hundreds of protocols, with more being added all the time
- Live capture and offline analysis
- Standard three-pane packet browser
- Multi-platform: Runs on Windows, Linux, macOS, Solaris, FreeBSD, NetBSD, and many others
- Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
- The most powerful display filters in the industry
- Rich VoIP analysis
- Read/write many different capture file formats: tcpdump (libpcap), Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer (compressed and uncompressed), Sniffer Pro, and NetXray, Network Instruments Observer, NetScreen snoop, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others
- Capture files compressed with gzip can be decompressed on the fly
- Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platform)
- Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
- Coloring rules can be applied to the packet list for quick, intuitive analysis
- Output can be exported to XML, PostScript®, CSV, or plain text
The following vulnerabilities have been fixed:
- wnpa-sec-2020-20 QUIC dissector crash Bug 17073.
The following bugs have been fixed:
New and Updated Features
- IETF QUIC TLS decryption errors when packets are coalesced with random data Bug 16914.
- QUIC: missing dissection of some coalesced SH packets Bug 17011.
- macos-setup.sh can’t find SDK on macOS Big Sur, as it went to 11 Bug 17043.
- Mapping endpoints in browser ⇒ Map file error Bug 17074.
- Wireshark 3.4.1 hangs on startup on macOS Big Sur 11.0.1 Bug 17075.
- False expect error seen on FCoE frames (not seen with older release wireshark 1.2.18) Bug 17084.
- Several libraries missing in 3.4.1 and 3.2.9 installers for macOS Bug 17086.
New Protocol Support
- There are no new protocols in this release.