JSI Tip 0814. NETSTAT -an displays TCP and UDP when only UDP is bound to the socket.

This is only a display problem and does not effect the connection.

NETSTAT displays protocol statistics and current TCP/IP network connections.NETSTAT [-a] [-e] [-n] [-s] [-p proto] [-r] [interval]  -a            Displays all connections and listening ports.  (Server-side                connections are normally not shown).  -e            Displays Ethernet statistics.  This may be combined with the -s                option.  -n            Displays addresses and port numbers in numerical form.  -p proto      Shows connections for the protocol specified by proto; proto                may be tcp or udp.  If used with the -s option to display                per-protocol statistics, proto may be tcp, udp, or ip.  -r            Displays the contents of the routing table.  -s            Displays per-protocol statistics.  By default, statistics are                shown for TCP, UDP and IP; the -p option may be used to specify                a subset of the default.  interval      Redisplays selected statistics, pausing interval seconds                between each display.  Press CTRL+C to stop redisplaying                statistics.  If omitted, netstat will print the current                configuration information once.