What is the proper syntax for enabling Cisco Express Forwarding (CEF)?
A.
router(config)# ip cef
B.
router(config)# cef ip
C.
router(config)# cef enable
D.
router(config-if)# cef ip enable
Explanation:
To enable CEF on the route processor card, use the ip cef global command in global configuration mode. To disable CEF, use the no form of this command:
– ip cef [distributed]
– no ip cef [distributed]
To enable CEF operation on an interface after the CEF operation has been disabled, use the ip route-chache cef command in interface configuration mode. To disable CEF operation on an interface, use the no form of this command.