Solution configure the network device to use a loopback interface address as the source address when originating tftp or ftp traffic. The Ip Address For The Loopback Interface Must Be Unique And Not In Use By Another Interface. In this case, you need to select the interface first by using the following command. You can now use the normal configuration commands to apply the configuration to all interfaces in the defined macro. That ip address must not be used by another interface on the router. Vrf Test Is Being Distributed By Bgp Route Reflector, It Works Fine. As per the objective youвЂ™re required to configure the ip address 10.233.21.251/24 on this interface as shown below After entering global configure mode type вЂњinterface loopback 1вЂќ to create a loopback interface. Pass the command вЂњshow ip int briefвЂќ and print the output of the interfaces. R3 (config)#int loopback 33 *mar 1 16:55:15.351: We have created a loopback 99 with an ip address on each switch: Device(config)# interface range macro enet_list: The Ip Address Must Not Be Used By An Interface On Any Other Router On The Network. The Ip Address Of A Loopback Interface Must Be Unique Across All Routers On The Network. Print the above configuration (loopback 0) which was executed in the above step. You can configure a loopback interface only from the cli Objective 2 request that we remove the loopback 1 interface, you can remove loopback interfaces by negating the. As per the objective youвЂ™re required to configure the ip address 10.233.21.251/24 on this interface as shown below This Changes The Router Prompt And Helps Distinguish The Device From Others. Source: You can now use the normal configuration commands to apply the configuration to all interfaces in the defined macro. If you mean to say anything else plz let me know. Source: You cannot configure a loopback interface from the webagent or menu interface.

Source: After entering global configure mode type вЂњinterface loopback 1вЂќ to create a loopback interface. Source: In this example, the interface is te1/0/1. The management vlan of the switch acts like the loopback interface since they are both logical interfaces. In this example, the interface is te1/0/1. A loopback interface is a virtual interface in our network device that is always up and active after it has been configured. Tftp and ftp messages sent to management servers should use the loopback address as the source address. Cisco Config Router Hostname In CLI YouTube from The management vlan of the switch acts like the loopback interface since they are both logical interfaces. We have created a loopback 99 with an ip address on each switch: The ip address of a loopback interface must be unique across all routers on the network. If you experience this issue, a router reload will resolve this problem.Configure Loopback Interface Cisco Switch. Basically this warning is letting you know that once you remove a logical or sub-interface using the no interface command there is the potential for some of the previous configuration to return when re-creating the same interface. This has been an issue with Cisco IOS for years and it has yet to be fixed. Once youвЂ™ve removed the interface youвЂ™ll notice a warning that not all config may have been removed and may reappear after reactivating the logical-interface/sub-interface. %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to down %LINK-5-CHANGED: Interface Loopback1, changed state to administratively down

% Not all config may be removed and may reappear after reactivating the logical-interface/sub-interfaces Router(config-if)# no interface loopback 1 Objective 2 request that we remove the Loopback 1 interface, you can remove loopback interfaces by negating the interface command using the no interface loopback # command as shown below As per the objective youвЂ™re required to configure the IP address 10.233.21.251/24 on this interface as shown below %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to upДЄfter the interface is created youвЂ™ll notice the interface changes to state up instantly. Configuration shown below Д®nter configuration commands, one per line. To create a loopback interface you need to navigate to global configuration mode and execute the command interface loopback # The interface is created automagically.

Loopback interface