04-01-2025, 10:36 AM
There is no mention of loopback 1 in the exhibit. The issue here is that loopback 2 is shutdown. Bringing it up and ensuring it has a valid IP 172.16.1.1 will resolve the issue. The act of reconfiguring the IP (even if the IP is already assigned) will also bring attention to the need to ensure the interface is not administratively down. Hence it is the best choice.