Re: UDP Port 7 - trying to understand
- From: mailer-daemon@xxxxxx (Patrick Schaaf)
- Date: 25 May 2006 11:48:39 GMT
"Java and Swing" <codecraig@xxxxxxxxx> writes:
I understand that UDP port 7 is typically used to run echo. What I am
trying to understand is how, by sending numerous packets to port 7, is
this an attack? i.e. how does it cause a problem?
The echo answer packets are larger, and probably more numerous,
than the (ratelimited) ICMP-port-unreachable messages that you'll
get back when no echo service is running.
Thus, for a given load of request packets, more return bandwidth
is consumed.
best regards
Patrick
.
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