[aklug] Re: ping

From: Shane R. Spencer <shane@bogomip.com>
Date: Tue Apr 13 2010 - 08:48:03 AKDT

Arthur Corliss wrote:
> On Mon, 12 Apr 2010, Scott A. Johnson wrote:
>
>> Not talking about ping. There is a difference between ICMP listening
>> for echo reply (ping) and measuring the TTL decreasing to figure out
>> which hosts your data is being routed through (traceroute). Has to do
>> with the different control pit set in the packet that determines which
>> kind of ICMP diagnostic you're sending/listening for.
>
> FYI: UNIX traceroute doesn't use ICMP for traceroutes, it uses UDP.
> Windows uses ICMP. Don't know what you're doing your traceroute from, but
> it might be a factor.
>

I thought it was the other way around but tcpdump says otherwise.
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Received on Tue Apr 13 08:48:33 2010

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