Wireshark is a network packet analyzer. A network packet analyzer will try to capture network packets and tries to display that packet data as detailed as possible. You could think of a network packet analyzer as a measuring device used to examine what's going on inside a network cable, just like a voltmeter is used by an electrician to examine what's going on inside an electric cable (but at a higher level, of course). In the past, such tools were either very expensive, proprietary, or both. However, with the advent of Wireshark, all that has changed. Wireshark is perhaps one of the best open source packet analyzers available today.
- 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, OS X, 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
- 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 platfrom)
- 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
What’s new in Wireshark 3.0.5:
The Windows installers now ship with Qt 5.12.5. They previously shipped with Qt 5.12.4.
If you have Npcap 0.994 or 0.995 installed, your system might crash when upgrading. We recommend that you uninstall these versions manually prior to installing Wireshark. See Npcap bugs 1591 and 1675 for more details. You can uninstall either version manually by doing the following:
- Open a command or PowerShell prompt as Administrator and run sc.exe config npcap start=disabled.
- Run sc.exe config npf start=disabled. This will fail if WinPcap compatibility mode isn’t enabled, but is otherwise harmless.
- Reboot (optional).
- Open “Programs and Features” in the Control Panel or “Apps & features” in Settings and uninstall Npcap.
- Open “Device Manager” (devmgmt.msc) in the Control Panel and expand the “Network adapters” section. Uninstall each “Npcap Loopback Adapter” that you find.
- Qt interface crashes on a profile with packet list only. Bug 16048.
- Wireshark 3.0.4 does not start on macOS 10.13 after an upgrade from 3.0.3. Bug 16050.
- NET-SNMP EngineID Length handling Warning. Bug 16051.
- Upgrade from Wireshark 3.0.2/3.0.3 to 3.0.4/later is confusing and may not complete properly. Bug 16052.
- Crash SIGSEGV when decrypting IEEE 802.11 EAP re-authentications. Bug 16058.
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