Both you and Valdis nailed it - from hostmgr.uiuc.edu: ----- This is hostmgrat_private I checked around and found out that vacuum.cso.uiuc.edu is running our list-serv software. I also found out by default, AIX 4.3.x uses large ICMP packets to do some sort of MTU discovery on remote networks. When it becomes a problem, it can be easily disabled, which our system admin has now done on vacuum. ----- Kudos to them for a really fast repsonse - 45 minutes from the time I sent the first e-mail :) Opus wrote: > > This is most likely an AIX box which by default has MTU discovery enabled > used to discover what size of packets it can send. This can be sdisabled > on the AIX box with the following command. This is not intended to be > malicious. > > no -o tcp_pmtu_discover=0 -- Chris Hobbs Silver Valley Unified School District Head geek: Technology Services Coordinator webmaster: http://www.silvervalley.k12.ca.us/~chobbs/ postmaster: chobbsat_private ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
This archive was generated by hypermail 2b30 : Thu Jul 26 2001 - 11:57:18 PDT