3-13Related commands: rip version.You can configure RIPv1 authentication mode in interface view, but the configuration will not take effectbecause RIPv1 does not support authentication.Examples# Specify the interface VLAN-interface 10 to use the simple authentication with the authentication keyof aaa. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] interface Vlan-interface 10[Sysname-Vlan-interface10] rip authentication-mode simple aaa# Specify VLAN-interface 10 to use the MD5 cipher text authentication, with the authentication key ofaaa and the packet format of rfc2453. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] interface Vlan-interface 10[Sysname-Vlan-interface10] rip authentication-mode md5 rfc2453 aaarip inputSyntaxrip inputundo rip inputViewInterface viewParametersNoneDescriptionUse the rip input command to enable an interface to receive RIP packets.Use the undo rip input command to disable an interface from receiving RIP packets.By default, all interfaces, except loopback interfaces, can receive RIP packets.Related commands: rip work.Examples# Disable the interface VLAN-interface 10 from receiving RIP packets. system-view