How do you ping a loopback interface?

To ping the loopback interface on your system to troubleshoot the problem, follow these steps:

1. In IBM Navigator for i, expand IBM i Management > Network > All Tasks > TCP/IP Configuration and click Work with Ping.
2. Specify the loopback interface IP address or host name.
3. Click Ping Now to send the Ping.

Which address can be used to ping the loopback interface?

127.0.0.1
A loopback address is a special IP address, 127.0. 0.1, reserved by InterNIC for use in testing network cards. This IP address corresponds to the software loopback interface of the network card, which does not have hardware associated with it, and does not require a physical connection to a network.

What is the purpose of loopback interface?

The loopback interface is used to identify the device. While any interface address can be used to determine if the device is online, the loopback address is the preferred method. Whereas interfaces might be removed or addresses changed based on network topology changes, the loopback address never changes.

What is a loopback interface?

A loopback interface is a virtual interface that is always up and reachable as long as at least one of the IP interfaces on the switch is operational. As a result, a loopback interface is useful for debugging tasks since its IP address can always be pinged if any other switch interface is up.

What is the loopback IP address?

The IP address 127.0. 0.1 is called a loopback address. Packets sent to this address never reach the network but are looped through the network interface card only. This can be used for diagnostic purposes to verify that the internal path through the TCP/IP protocols is working.

How do I loopback an IP address?

Navigate to the Configuration > Network > Controller > System Settings page and locate the Loopback Interface section. Modify the IP Address as required. Click Apply. If you are use the loopback IP address to access the WebUI, changing the loopback IP address will result in loss of connectivity.