Common causes and solutions of "computer network" ping not being able to pass

Ping is a command under Windows, UNIX, and Linux systems. Ping also belongs to a communication protocol and is part of the TCP/IP protocol. Use the ping command to check whether the network is connected. If the ping is not general, the cause of the failure can be found in the following ways:

1. Ping 127.0.0.1

127.0.0.1 is a local loop address, and if this address cannot be ping, the local machine TCP/IP protocol does not work correctly.

2. Ping the IP address of the machine

Using Ipconfig to view the native IP, and then ping the IP, the general rule indicates that the network adapter (NIC or modem) is working properly, and the general rule is that the network adapter has failed.

3. Ping the IP of the same network segment computer

Ping the IP of a computer with a network segment, the general rule indicates that the network line is faulty, if the network also contains a router, you should first ping the router in the network segment port IP, not the general section of the line is a problem; general, and then ping the router on the destination computer's network segment port IP, the general rule is that the routing fails The general rules re-ping the destination IP address.

4. Ping URLs

To detect a network with a DNS service that, after pinging the IP address of the destination computer in the previous step, is still unable to connect to the machine, ping the network name of the machine, such as Ping sina.com.cn, the IP that the URL points to is normally present, which indicates that the DNS settings are correct and that the DNS server is working properly, which may be one of the failures Also, the failure of WINS resolution can be detected by pinging the computer name (WINS is the service that resolves the computer name to an IP address).

　

Resources:

1. http://tieba.baidu.com/p/352553425

　　

Common causes and solutions of "computer network" ping not being able to pass