How To: Verify TCP/IP is Installed and Functioning Properly (2024)

FAQs

How To: Verify TCP/IP is Installed and Functioning Properly? ›

Press the Windows key + R, then type "cmd.exe" and click OK. Enter "telnet + IP address or hostname + port number" (e.g., telnet www.example.com 1723 or telnet 10.17.xxx.xxx 5000) to run the telnet command in Command Prompt and test the TCP port status. If the port is open, only a cursor will show.

Press the Windows key + R, then type "cmd.exe" and click OK. Enter "telnet + IP address or hostname + port number" (e.g., telnet www.example.com 1723 or telnet 10.17.xxx.xxx 5000) to run the telnet command in Command Prompt and test the TCP port status. If the port is open, only a cursor will show.

Use the ping command with the remote system's TCP/IP address -- for example, ping 192.9. 200.1. If this is unsuccessful, the TCP/IP software is not properly installed and configured. TCP/IP must be working before you can use it.

Testing TCP/IP using the command prompts

From a workstation, open a command prompt and type ping followed by the IP address of the interface you have configured.

You can do this with the netstat command. The netstat command displays the active TCP connections and ports on which the computer is listening, and other information such as process IDs.

Find Your TCP/IP Properties in Microsoft Windows 10

At the command prompt, type ipconfig /all and press Enter. Note the values that you see for the primary network adapter.

How to check TCP command? ›

Open the command prompt (Start > Run > cmd) and use netstat -ano | find /i "<port_number>". It will show you all processes that use the specified port. Notice the PID (process id) in the right column. -a – Displays all active connections and the TCP and UDP ports on which the computer is listening.

Netstat (Network Statistics) is a command-line tool available on most operating systems that will display the current status of TCP and UDP conversations.

The most common TCP/IP command used to diagnose connectivity, reachability, and name resolution issues is ping. You can test the computer's IP address and name with this command.

Select the Windows Start button, then the Settings menu, and then the Control Panel from the Settings menu. Double click on the Network icon. Look in the top list box in the Configuration tab. If you do not see an entry that starts with TCP/IP then you have not installed TCP/IP.

Press the 'windows' key and type 'cmd'. Press “Command Prompt”. Step 3: On the command prompt, type the command “telnet + IP address or hostname + port number” and check the status of the provided TCP port.

Right click the windows button in the lower left of your screen. Select command prompt from the list. A black and white window will open where you will type ipconfig /all and press enter. There is a space between the command ipconfig and the switch of /all.

Testing TCP/IP using the command prompts

From a workstation, open a command prompt and type ping followed by the IP address of the interface you have configured.

Open the command prompt (Start > Run > cmd) and use netstat -ano | find /i "<port_number>". It will show you all processes that use the specified port. Notice the PID (process id) in the right column. -a – Displays all active connections and the TCP and UDP ports on which the computer is listening.

Find Your TCP/IP Properties in Microsoft Windows 10

At the command prompt, type ipconfig /all and press Enter. Note the values that you see for the primary network adapter.

To monitor TCP and UDP traffic, you need to use tools that can capture and analyze the packets that are sent and received over the network. Some of the common tools are Wireshark, tcpdump, nmap, netstat, and iperf.