Re: [FW1] Scary traffic - long

["Paul D. Robertson" <proberts () clark net>]

On Fri, 18 Dec 1998, Dameon Welch wrote:

> > So another question, is there some condition with UDP that causes an
> > echo-reply to be generated?
>
> Unix traceroute. 

Um no, unix traceroute sends out UDP datagrams.  Things being tracerouted 
send back "time exceeded in-transit", not echo reply, with a "port 
unreachable" generated at the end (hopefully).

_Windows_ traceroute uses ICMP, not sure what type, but I'd guess echo 
request would be a good candidate.  That would generate an echo reply at 
the end.  Windows traceroute doesn't use UDP though AFAIK.

Paul
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Paul D. Robertson      "My statements in this message are personal opinions
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