Hello sisiaji,<br><br>You have to change the subnet mask of loopback0.The subnet mask (255.255.255.255) you use here has no host.How can you assign the IP to CUE if there is no host available.First use this subnet mask (255.255.255.0 /24) under loopback 0.Now you can assign IP to CUE.<br>
I hope you understand the concept.<br><br><br>interface Loopback 0<br>
ip address 10.1.10.254 /24 ( 255.255.255.0)