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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