is the world's foremost network protocol analyzer.
can operate with any kind of network adapter, despite WIFI ones. After clicking on the start button, you'll have the ability to see captured and analyzed packets in real time. It allows you to see what's happening on your own network at a microscopic level. It's the de facto (and often de jure) standard across many industries and educational institutions.
The program shows us, together with the IP address and DNS, other quite useful information (TCP, ICMP, IPX and UDP), and it's compatible with the BOOTP, DHCPv6, SCTP, SSL, ZRTP, FIP, GPRS LLC, OPCUA and Kerberos standards.
can be expanded by means of plug-ins and it allows us to export the information as XML, PostScript, TXT and CVS.
Download and install Wireshark
safely and without concerns.
Wireshark highlights and features:
Deep inspection of hundreds of protocols, with more being added all the time
Live capture and offline evaluation
Standard three-pane packet browser
Multiplatform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
Captured network data can be browsed by means of 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