[Asterisk-Users] Re: How is Teliax ?

[Rich Adamson]

>> 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. :)