snort-0.99rc5.tar.gz

Snort v0.99rc5 is an extremely versatile packet logger. This version features dramatic speed improvements, due to improved Boyer-Moore pattern match routine optimizations, a more logically laid out packet header print out, packet statistics, fragment detection, more complete IP header decoding, a new command line switch ("-e") to display/log the Ethernet header, plus TOS field and IP Fragment ID field display/logging. Improved timestamping (down to the millisecond) implemented. This release also has TCP and IP option decoding, and lots of new rules. You can now specify port ranges (or greater than/less than) and TCP flags in rules. This allows you to do things like this: alert tcp any any -> 192.168.1.0/24 :1024 {SF} 192.168.1.0/24 6000:6010 which will pick out inbound traffic going ports 6000 thru 6010. Also includes bugfixes, cleaned up fragment printout routines, truncated packet fragments get dumped in their own file, rules processor routine recoded and more flexible, much more. Several important bugfixes in this release, plus recoded IP/TCP option decoding, revised packet printout routines, and now logs illegal TCP and IP options as well in an IP_BOGUS log file.