Which command is utilized to configure OSPF with address family capabilities?

The command that is used to configure OSPF with address family capabilities is "router ospfv3 process-id." This command specifically refers to the OSPFv3 protocol, which is designed to support IPv6 addressing. OSPFv3 extends the original OSPF by allowing for multiple address families, making it more versatile in modern networking environments.

When configuring OSPF for IPv6, it's important to understand that OSPFv3 operates differently compared to OSPFv2, which is used for IPv4. The choice of this command indicates that the configuration is aimed at an environment that requires IPv6 routing capabilities, thus allowing the routing protocol to manage network traffic effectively in such architectures.

In contrast, the command "router ospf process-id" is used for OSPFv2 and is limited to IPv4 configurations. The "router ospf address-family" command is not a valid command in itself and would not be recognized by Cisco devices. Similarly, "router ospf interface" does not pertain directly to configuring address family capabilities and focuses instead on interface-specific OSPF configurations. Therefore, selecting "router ospfv3 process-id" correctly corresponds to the need for OSPF capable of handling various address