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Introduction to common network test commands

Source:Shenzhen Kai Mo Rui Electronic Technology Co. LTD2020-06-05

[Network Basics] Introduction to High Frequency Network Test Commands

IP

Have you ever encountered a situation where someone asked you what your computer’s IP address and gateway are, but you don’t know how to look at it?
Have you encountered a situation where you want to test the network connection but do not know how to test it?
Come and learn the basic commands of the network with the editor~



Prerequisite information: How to open the test command interface?

Press "win+r" on the computer keyboard to pop up a running prompt box, enter "cmd"
Click OK, a black window pops up, the following commands are all carried out on this basis!


ipconfig


Indications
View computer IP address


Enter the command "ipconfig" and press the "enter" key on the keyboard
You can get the machine's ip address, subnet mask, gateway and other information.
The red box in the figure below is the local IP.


Assist
The gateway is the Lan port ip of the router


How about it, it's very simple, learn a command "ipconfig", no longer afraid of not being able to find the computer ip, router ip
ping
Indications
Test the network status, whether it is connected, whether there is packet loss
Enter the command format "ping+space+device ip", and then hit enter.
The computer will send out 4 communications to know the network connection status of the device.
such as:

ping 192.168.1.1

Assist
Long ping test whether there is packet loss
E.g:
ping 10.1.7.77  -t
telnet
Indications
Test port can't work
Enter the command format "telnet+device external network ip+mapping port", and then hit enter.
After the test, the port is connected, and a cursor is flashing on the black interface, as shown in the following figure:


The port fails after the test, as shown in the following figure:

How to deal with the prompt "telnet is not an internal or external command"?
the reason
WIN7 The telnet function is not turned on by default, it needs to be turned on before use
step
1


Open the computer "Control Panel-Programs and Features-Turn on or off windows functions".

step
2


Tick the telnet server and telnet client in the windows function on or off, and click "OK" to start the telnet service.

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