Appendix A Network Troubleshooting
P-870HN-51D User’s Guide
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netstat
The netstat command line utility is used to show Ethernet statistics and current
TCP/IP network connections.
Syntax: netstat
With no parameters, this command simply displays only active statistics for ports
that are currently in use by one process or another.
Parameter: netstat [-a] [-e]
The -a parameter displays all available listening ports and connections whether
they are active or not, while the -e parameter displays Ethernet statistics.
There are other parameters but these are the only ones you need to use for now.
The following examples show the typical output of this command:
C:\>netstat
Active Connections
Proto Local Address Foreign Address State
TCP COMPUTERA:1056 localhost:5091 ESTABLISHED
TCP COMPUTERA:1091 localhost:27015 ESTABLISHED
TCP COMPUTERA:1120 localhost:40000 ESTABLISHED
TCP COMPUTERA:3243 localhost:3244 ESTABLISHED
TCP COMPUTERA:3244 localhost:3243 ESTABLISHED
TCP COMPUTERA:3246 localhost:3247 ESTABLISHED
TCP COMPUTERA:3247 localhost:3246 ESTABLISHED
TCP COMPUTERA:5091 localhost:1056 ESTABLISHED
TCP COMPUTERA:5152 localhost:3245 CLOSE_WAIT
TCP COMPUTERA:27015 localhost:1091 ESTABLISHED
TCP COMPUTERA:40000 localhost:1120 ESTABLISHED
TCP COMPUTERA:3229 172.20.0.201:http CLOSE_WAIT
TCP COMPUTERA:3234 172.16.1.29:1155 ESTABLISHED
TCP COMPUTERA:3237 172.16.1.29:1155 ESTABLISHED
TCP COMPUTERA:3240 172.16.1.29:1155 ESTABLISHED
C:\>
