The problem is return path ICMP time exceeded from intermediate hops, and not the response from the final destination. – S -----Original Message----- From: Andre Gironda <andre@operations.net> Sent: Wednesday, December 03, 2008 16:35 To: nanog@nanog.org <nanog@nanog.org> Subject: Re: Recommendation of Tools On Wed, Dec 3, 2008 at 11:01 AM, Anders Lindbäck <list-only@dnz.se> wrote:

And using UDP will not really provide better results due to the same thing, and IIRC Cisco from 12.0 has a standard setting of no more then 1 ICMP Unreach per 500ms..

then connect to a udp service with something like nsping