http://www.rfc-editor.org/rfc/rfc1393.txt
RFC 1393: Traceroute Using an IP Option, G. Malkin1993-01-01T23:00:00-00:00This document specifies a new IP option and ICMP message type which duplicates the functionality of the existing traceroute method while generating fewer packets and completing in a shorter time. This memo defines an Experimental Protocol for the Internet community.