Router(config-router)#no version 2
Changes back to RIP-1
Router(config-router)#version 1
Changes RIP routing to RIP-1
Router(config-router)#no auto-summary
RIP-2 summarizes networks at the classful boundary. This command turns autosummarization off
Router(config-router)#auto-summary
Re-enables autosummarization at the classful boundary
