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NETSTAT
Once you have determined that your base level communications are working you will need to verify the services on your system. This involves looking at the services that are listening for incoming traffic and/or verifying that you are creating a session with a remote station. The NETSTAT command will allow you to do this.
C:\>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.
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