From bcn  Tue Jun  1 07:51:35 1993
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Date: Tue, 1 Jun 93 14:51:35 PDT
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From: Clifford Neuman <bcn>
To: PETER@psychnet.psychol.utas.edu.au
Cc: C.Warren@deakin.edu.au, bajan@bunyip.com, info-prospero
In-Reply-To: Alan Emtage's message of Tue, 1 Jun 1993 17:19:13 -0400 <9306012119.AA17783@mocha.bunyip.com>
Subject: About UDP ports that archie uses
Status: R

There are two ports officially assigned to Prospero (and hence archie
as well).  The official port is 191, and the official non-privileged
port is 1525.  If a Prospero or archie server is able to bind the
privileged port, the server will listen on both ports.  If not, it
will only listen on the non-privileged port.

If the server can bind the privileged port, the response will be sent
on the privileged port.  The default port used to contact a server is
presently 1525, which is the most general port since all servers
listen on it.  It is not uncommon to have a message sent on 1525, but
to receive the response from 191.  If you are writing your own client,
it should not reject a response simply because the server port
changed.  You may use the connection id in the response to pair the
response with the request.

	~ Cliff