On Sun, 2 Apr 2006, Rich Adamson wrote:
end-to-end path. Each step through the tracert process does nothing more
then issue an icmp echo request, measuring the response time and
displaying it.
maybe on windows it does icmp echo but no unix does this (at least not by
default). i recommend you study what unix traceroute actually does. :)
I'm very heavy (professionally) into protocol analysis, and yes unix does
rely on icmp to perform the traceroute. (icmp pkt type 11, code 0)
If you're a non-believer, put an access list on all icmp traffic and see if
your traceroute continues to function. :)
I said unix doesn't rely on icmp echo (might want to actually read the
message next time :)
I can block icmp echo and unix traceroute will function perfectly fine.
-Dan
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