Packet Peeper
Packet Peeper is a free network protocol analyzer (packet sniffer) for Mac OS X. TCP stream reassembly. Privilege separation. Simultaneous capture sessions. ...
Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network.
wireshark is the world's foremost network protocol analyzer. it lets you capture and interactively browse the traffic running on a computer network. it is the de facto (and often de jure) standard across many industries and educational institutions.
wireshark has a rich feature set which includes the following:
deep inspection of hundreds of protocols, with more being added all the time live capture and offline analysis standard threepane packet browser multiplatform: runs on windows, linux, os x, solaris, freebsd, netbsd, and many others captured network data can be browsed via a gui, or via the ttymode 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
Network Monitoring Network usage history
Productivity Developer Tools Security Networking and Admin
network-monitoring analyzer network-analyzer troubleshooting network-security network-usage-history packet-capture protocol sniffing