These online tools provide visually interesting AS-related maps: Graphical AS Matrix: http://www.netlantis.org/index.html?menu=2&page=sagm Graphical AS Path: http://www.netlantis.org/index.php?menu=2&page=gasp Jasvpi (Java Autonomous System Path visualization): http://lab.verat.net/Jaspvi/ At 01:16 PM 6/27/2003 -0500, Malayter, Christopher wrote: I'm curious if anyone could point me to a utility for AS-Tree mapping from a routing table output? I searched the archive a bit, and didn't find anything. Thanks ahead! -Chris/AS4181 _________________________________________________________________ Russ Haynal - Internet Instructor, Speaker and Paradigm Shaker "Helping organizations gain the most benefit from the Internet" russ@navigators.com http://navigators.com 703-729-1757