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
Wireshark 3.4.9 bug fixes:
- TShark PDML output embeds "proto" elements within other "proto" elements Issue 10588.
- Filter expressions comparing against single-octet hex strings where the hex digit string equals a protocol name don’t work Issue 12810.
- AMQP 0.9: dissector fails to handle Content-Body frame split across TCP packets Issue 14217.
- IEEE 802.15.4: Missing check on "PAN ID Present" bit of the Multipurpose Frame Control field Issue 17496.
- Wireshark ignored some character in filename when exporting SMB objects. Issue 17530.
- tshark -z credentials: assertion failed: (allocator→in_scope) Issue 17576.
- IS-IS Extended IP Reachability Prefix-SID not decoded properly Issue 17610.
- Error when reloading lua plugins with a capture file loaded via a custom lua file handler Issue 17615.
- Absolute time UTC field filters are constructed incorrectly, don’t match the packet Issue 17617.
- GUI freezes when clicking on large (non-capture) file in File chooser Issue 17620.
- Crash after selecting a different profile while capturing Issue 17622.
- BT-DHT reports malformed packets that are actually uTP on same connection Issue 17626.
Updated Protocol Support
- AMQP, Aruba IAP, BGP, BT-DHT, CoAP, DCERPC SPOOLSS, Diameter, EPL, GSM A-bis OML, GSM A-I/F COMMON, GSM SIM, IEEE 1905.1a, IEEE 802.15.4, IMAP, InfiniBand, ISIS LSP, ISObus VT, JPEG, MP2T, NORDIC_BLE, QUIC, RTCP, SDP, SMB, TWAMP-Control, USB HID, and VSS Monitoring
New and Updated Capture File Support
- CAM Inspector, Ixia IxVeriWave, pcapng, and USBDump