Hi, Noonan, Wesley wrote: > [..] I am trying to generate traffic that will be > dropped out of hand by both switches and routers. The nature of the packet > (fragment, giant, etc.) isn't as important to me as the ability of the > switch/router to recognize that the packet needs to be dropped. > Products/tools that are Windows based are preferred, though Linux and/or > Solaris are acceptable as well [..] a packet that would be silently dropped by a router could be an ICMP "time exceeded" packet where the ttl count reaches 0. By setting the start value for ttl you decide after how many hops you want your packet to be dropped. A tool to create these would be hping (on Unix/Linux, see http://www.kyuzz.org/antirez/hping.html). To have your packet dropped by a switch would require some illegal values for your media to be set, e.g. an illegal frame size on ethernet. Don't know of a tool to create these, and i'm not sure if every network interface would actually be able to create such a frame. Wolfgang Zenker -- Wolfgang Zenker Mail: W.Zenkerat_private JPAVES Unix Online GmbH Fon: (+49) 721 / 955 40 60 Kaiserallee 87 Fax: (+49) 721 / 955 40 62 D-76185 Karlsruhe Web: www.jpaves.de ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
This archive was generated by hypermail 2b30 : Mon Jul 23 2001 - 16:44:01 PDT