ICND2: Interconnecting Cisco Networking Devices Part 2 (legacy) — Question 137

Which component of an IPv6 OSPFv3 connection must be configured in IPv4 format?

Answer options

• A. Router ID
• B. Primary interface
• C. Neighbor address
• D. Secondary interface

Correct answer: A

Explanation

The Router ID in OSPFv3 must be configured in IPv4 format because it is a 32-bit value that uniquely identifies a router in an OSPF network. The other options, such as Primary interface, Neighbor address, and Secondary interface, are related to the IPv6 configuration and do not require IPv4 formatting.