Which feature is unique to IPv6 ACLs when compared to those of IPv4 ACLs?
- the use of wildcard masks
- an implicit deny any any ACE
- the use of named ACL entries
- an implicit permit of neighbor discovery packets
Explanation: One of the major differences between IPv6 and IPv4 ACLs are two implicit permit ACEs at the end of any IPv6 ACL. These two permit ACEs allow neighbor discovery operations to function on the router interface.
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