From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 31 Aug 1998 09:44:44 +0100
From: forsyth@caldo.demon.co.uk forsyth@caldo.demon.co.uk
Subject: [9fans] listen udp
Topicbox-Message-UUID: 7de5323a-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19980831084444.Q17ByXuzaTs_f7oIwkcF0sjSRJriLwb0rOQsSWigz2c@z>

aux/listen isn't used for udp.
the few udp services announce themselves directly.