Use the ping command to easily determine TCP/IP failures

Source: Internet
Author: User

1, Ping 127.0.0.1:

127.0.0.1 is a local circular address and if this address is not ping, the local machine TCP/IP protocol does not function.

2, ping This computer IP address:

Use 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, not the general rule is that the network adapter fails.

3, Ping the same network segment of the computer IP:

Ping the IP of a computer on the same network segment, the general rule indicates that the network line has a fault, if the network also contains routers, you should ping the routers in the network segment of the IP, not general rule This section of the line has problems; The general rule again ping the router in the target computer in the network segment of the port IP, is not general routing failure; General rules again ping the destination machine IP address.

4, Ping website:

To detect a network with a DNS service, you can ping the network name of the computer, such as Ping, after the IP address of the destination machine has been ping in the previous step and you are still unable to connect to the machine. Www.williamlong.info, the IP that the URL points to will normally appear, which indicates that the DNS settings for this computer are correct and the DNS server is working properly, and vice versa may be one of the failures; the same can be done by pinging the computer name to detect the failure of WINS resolution ( WINS is a service that resolves the computer name to an IP address.

After these four steps have been completed, the point of failure in the network is clear and we can solve the problem correctly.

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