Ufasoft

LAN and WLAN Sniffer. A program for low-level network packets capturing and analyzing in real-time. Includes: ICQ, AIM, IRC, MSN analyzers and ARP-spoofer. Allows to capture all network traffic even in switched LAN. Sniffer supports parsing of following protocols: IP, TCP, UDP and many others, Also includes: tcpdump, tcpflow, tcpstat.