300-420 Question 26
Select 2During the design of a Cisco enterprise network, you are tasked with implementing an address-family configuration within a routing protocol to support both IPv4 and IPv6 address spaces. Which address families must you configure in the routing protocol to achieve this goal?
- A
IPv4 unicast
- B
IPv6 unicast
- C
IPv6 multicast
- D
VPNv4
- E
IPv4 multicast
Show answer and explanation
Correct answers: A, B
Explanation
To support both IPv4 and IPv6 address spaces in an enterprise network, the routing protocol must be configured with the 'IPv4 unicast' and 'IPv6 unicast' address families. These address families enable the routing protocol to handle unicast traffic for both IPv4 and IPv6, which is essential for dual-stack environments. Other address families, such as multicast or VPNv4, are not relevant to this specific requirement.
- A. Correct.
IPv4 unicast is required to support IPv4 routing in the network and is a common address family used in routing protocols.
- B. Correct.
IPv6 unicast is required to support IPv6 routing in the network and must be explicitly configured in many routing protocols to enable IPv6 address-family support.
- C. Incorrect.
IPv6 multicast is not required in this scenario as the goal is to support IPv4 and IPv6 unicast address spaces, not multicast traffic.
- D. Incorrect.
VPNv4 is used for MPLS VPN configurations and is unrelated to the specific requirement of supporting IPv4 and IPv6 unicast routing.
- E. Incorrect.
IPv4 multicast is not required in this scenario as multicast traffic is not part of the stated requirement.