Refer to the exhibit. The loopback interface 1 of Router R2 is not appearing in the routing table of R1. Router R1 has all correct configurations. What can be the cause of
![ip - What's the relationship of a Router with its loopback interface in logic? - Network Engineering Stack Exchange ip - What's the relationship of a Router with its loopback interface in logic? - Network Engineering Stack Exchange](https://i.stack.imgur.com/upoDW.png)
ip - What's the relationship of a Router with its loopback interface in logic? - Network Engineering Stack Exchange
![cisco - Whats's the function of a loopback interface in routing protocols? - Network Engineering Stack Exchange cisco - Whats's the function of a loopback interface in routing protocols? - Network Engineering Stack Exchange](https://i.stack.imgur.com/TLEFV.png)
cisco - Whats's the function of a loopback interface in routing protocols? - Network Engineering Stack Exchange
![How to configure loopback interfaces on cisco router | Learn Linux CCNA CEH IPv6 Cyber-Security Online How to configure loopback interfaces on cisco router | Learn Linux CCNA CEH IPv6 Cyber-Security Online](https://linuxtiwary.files.wordpress.com/2016/10/loopback-interfaces-tutorial.png)
How to configure loopback interfaces on cisco router | Learn Linux CCNA CEH IPv6 Cyber-Security Online
![What is Loopback interface in Cisco Router and what is use of loopback interface how to configure Loopback interface What is Loopback interface in Cisco Router and what is use of loopback interface how to configure Loopback interface](https://1.bp.blogspot.com/-XIpygxE83-8/X9Irut4mU3I/AAAAAAAABwc/mdnhe8TqZ30K9pLVZYWuUYev5DwMJnfKgCLcBGAsYHQ/s384/a1.jpg)
What is Loopback interface in Cisco Router and what is use of loopback interface how to configure Loopback interface
![Configuring IP Addresses on the Loopback Interface - NIOS Admin Guide - Infoblox Documentation Portal Configuring IP Addresses on the Loopback Interface - NIOS Admin Guide - Infoblox Documentation Portal](https://docs.infoblox.com/download/attachments/22252080/24.2.png)
Configuring IP Addresses on the Loopback Interface - NIOS Admin Guide - Infoblox Documentation Portal
![What is Loopback interface in Cisco Router and what is use of loopback interface how to configure Loopback interface What is Loopback interface in Cisco Router and what is use of loopback interface how to configure Loopback interface](https://1.bp.blogspot.com/-qM2HiAxY3v4/X9It9Jdz51I/AAAAAAAABwo/AuEgUHblwjAAzIpsGsHNElGst-lA1yElQCLcBGAsYHQ/s384/a5.jpg)