ItРІР‚в„ўs an interface like any other, and can be assigned its own address. Note that the loopback interface is not tied to the address 127.0.0.1. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The loopback interface is a virtual interface that is always up and available after it has been configured. The cookie is used to store the user consent for the cookies in the category 'Performance'. This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category 'Other. IP Address Your IP address is: What is an IP Address An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet. The cookies is used to store the user consent for the cookies in the category 'Necessary'. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category 'Functional'.

The cookie is used to store the user consent for the cookies in the category 'Analytics'. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. In order to create a loopback interface, navigate to global configuration mode and run the command interface loopback number, by issuing this command loopback interface will be created automatically. What is a Subinterface in a Cisco Router.By default, a router does not have any loop-back interface later you may create them and assign the IP addresses accordingly. Usually, the loopback IP address range could be between 127.0.0.1 to 127.255.255.255.254 and you may use any IP addresses among this range to access the localhost.Р”Р„nother common use of loopback address to identify the router, it can also be used in order to check the availability or router, for example, you want to find out either the router is up or down, it is possible that ping reached to that interface that was down, but it did not mean router was down at all, in order to avoid this confusion, we can use the loopback addresses.Р”Р„ loopback interface is not physical interface like Fast Ethernet or Giga Ethernet rather it is the logical interface, In OSPF we use the loop-back IP address in order to identify the OSPF router-id, it allows BGP (border gateway protocol) neighborship to remain open if one of the outbound physical interface connected between them goes down.

The loopback interface is the virtual interface that is always available and ready to be used, it is not mandatory that it will be tied with 127.0.0.1 it an interface like any other interface that could have its own IP addresses, but usually, we assign the 127.0.0.1 in IPV4 environment and::1 in ipv6 environment.

What is my loopback ip