[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
OK, so what does this mean?
Date: Thu, 27 Jun 1991 23:52 EDT
From: pan@ATHENA.PANGARO.dialnet.symbolics.com (Paul Pangaro)
My init does a Set Time from the network; right in the middle,
it did this:
New time is 6/27/91 23:49:59.
[23:50:17 IP Error 3 3: IP E->A 3 (0:12)
UDP[ 37 1026] length 12: AC 15 2F AA ,/*]
Set status line time? (Y or N)
Any ideas? Some wierd animal.
You shouldn't see "IP Error" notifications unless you've set
Error 3/3 is Port Unreachable, which is sent by hosts when they receive
a UDP datagram to an unrecognized port.
I think what happened here is that E was slow in responding to A's
broadcast query for the time, so its response came after A had already
closed the reply port. It therefore treated the reply as if it were a
query to an unrecognized server port. This confusion is an unfortunate
consequence of the symmetricity of the UDP protocol -- there's no
inherent way to distinguish queries from responses.