[转载]Layer Four Traceroute (LFT) and WhoB

信息来源：邪恶八进制信息安全团队（www.eviloctal.com）

LFT, short for Layer Four Traceroute, is a sort of 'traceroute' that often works much faster (than the commonly-used Van Jacobson method) and goes through many configurations of packet-filters (firewalls). More importantly, LFT implements numerous other features including AS number lookups through several reliable sources, loose source routing, netblock name lookups, et al.

http://pwhois.org/lft/