Refer to the exhibit. Which statement describes the function of the ACEs?

Refer to the exhibit. Which statement describes the function of the ACEs?

• These ACEs allow for IPv6 neighbor discovery traffic.
• These ACEs automatically appear at the end of every IPv6 ACL to allow IPv6 routing to occur.
• These are optional ACEs that can be added to the end of an IPv6 ACL to allow ICMP messages that are defined in object groups named nd-na and nd-ns.
• These ACEs must be manually added to the end of every IPv6 ACL to allow IPv6 routing to occur.

Explanation: The ICMP protocol is used for neighbor discovery. The two permit statements allow neighbor advertisement and neighbor solicitation messages between IPv6 devices.

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