Enterprise Router R1 connects an Enterprise to the Internet. R1 needs to create and advertise a default route into the Enterprise using EIGRP. The engineer creating the implementation plan has chosen to base this default route on the ip route command, rather than using i p default - network. Which of the following is not a useful step with this style of default route configuration?（）

• A、Create the default route on R1 using the ip route 0.0.0.0 0.0.0.0 outgoinginterface command.
• B、Redistribute the statically configured defa ult route.
• C、Disable auto - summary.
• D、Configure the network 0.0.0.0 command.
• E、Ensure R1 has no manually configured summary routes using the ip summary- address eigrp command.