Raw sockets

[Fredrik Juhlin]

On Thu, Dec 13, 2001 at 07:52:11PM -0800, Andrae Muys wrote:
> Might I suggest you first check out Stevens 'TCP/IP Illustrated Vol 1'
> as it will explain in excelent detail how traceroute is built using
> UDP not ICMP :).
He might have meant tracert (or whatever it's called on Win32
systems, maybe they even call it traceroute in the newer versions) which
IIRC uses ICMP echo requests rather than random high UDP ports.

//FJ