30 May
2006
30 May
'06
18:41
On Tuesday, 30 May 2006 13:25, James Knott wrote:
How does Windows use ICMP for traceroute? Traceroute depends on the error message generated when "time to live" expires. Error messages are not supposed to be generated for ICMP packets.
Windows sens out an ICMP packet with a TTL of 1, and increments every succeeding packet by 1 until it receives an ICMP type 0, code 0 (ICMP reply). For more info, check out Cisco's Web site (I think this is viewable by those without an Cisco account). http://www.cisco.com/warp/public/105/traceroute.shtml#gen