Several offices are connected with VPNs using static IPv4 routes. An administrator has been tasked with implementing OSPF to replace static routing.
Which step is required to accomplish this goal?
A . Assign an IP address on each tunnel interface at each site
B . Enable OSPFv3 on each tunnel interface and use Area ID 0.0.0.0
C . Assign OSPF Area ID 0.0.0.0 to all Ethernet and tunnel interfaces
D . Create new VPN zones at each site to terminate each VPN connection
Answer: C