LoopBack

A LoopBack interface is a logical interface. It is always Up. The LoopBack interface is usually used in LoopBack test.

Context

According to the TCP/IP protocol suite, the IP addresses in the network segment 127.0.0.0 are LoopBack addresses. The system automatically creates an interface using loopback address 127.0.0.1. This interface is used to receive datagrams sent to the local device.

Procedure


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