Shulou(Shulou.com)06/01 Report--

Basically all the network problems encountered will be asked, have you ping yet?

Ping is a common denial of service request, used to test online status, if you can ping, you are still alive, if not, it means you are dead, this command is very useful. Here are a few common scenarios

1. Ping printer

If your computer is installed and your printer cannot print, you might as well ping the printer to see if the printer is not turned on, or your network cable is not plugged in.

2 、 ping DNS

This is used to test which operator's network you are using, nothing more than telecom, mobile, Unicom, Great Wall network, and another is to use ping DNS to detect who is using bt download tools or large data transfers in your local area network.

3. Ping gateway

The effect of this command is very great. Generally, it is necessary to have a network troubleshooting method commonly used by people with 3-4 years of experience. For people who have just come out to work, many things may be vague and not clear enough. They only know that they want to do so, but they do not know why they want to do so. This is very understandable. The value and significance of this thing lies in your practical frequency and your own perception. If you use it frequently, you will definitely analyze it. If you want to use this thing in this way, you will definitely find the answer yourself. Of course, it is better to get it by yourself. The things on the Internet are only used as a reference, and the mechanical description is always not as deep as the feeling of skin-cutting.

The ping gateway solves the problem from the source. We need to know what the function of the gateway is. The gateway is a door, a door to the outside, so the inside of the gateway is the local area network and the outside is the Internet. If you have different ping gateways, then there is a problem with the router. Either the machine is turned off, or the network cable interface is unplugged or the cable is gnawed off by a mouse. If there are no above problems. Check to see if the optical fiber equipment connected to your router has normal power supply and whether the cable has been broken. If it is broken, call the network operator to rush to repair it. Sometimes the construction will break the optical fiber. Although this situation is rare, it has happened. I encountered it at that time, and now I have a deeper understanding of why the ping gateway was originally needed.

If the gateway can ping, then ping the management IP address of the core switch, then ping the management IP address of the aggregation layer switch, and then ping the gateway address of your network segment, the general idea is like this, this is a top-down inspection, for me, this method is applicable, to say that straightforward point is hands-on operation, and then form your own things.

The same is true of how other servers cannot access the Internet. Check the gateway address of the server.

Parameters of ping connection

Ping 202.103.24.68-t continuous ping

Ping 202.103.24.68-n 100 ping packet equals 100

Ping defaults to the end of four ping packages, and the ping package also takes up traffic. If you have the best configuration of computers, open enough cmd and gather enough people to hang up Taobao, this is actually quite powerful. Don't underestimate the power of ants. Even if there are too many ants, elephants can't do anything. Just have fun.

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