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As studied before, Access Control Lists (ACL) are an important resource not only for packet filtering but also for tasks such as traffic classification and route filtering. This section covers the options supported by IOS IPv6 ACLs.
Example 16-12 highlights the parameters frequently used when defining IOS IPv6 ACLs. They are represented by the well-known permit, deny, remark, and sequence keywords. The example also shows the available protocol keywords displayed when the permit option is configured under an IPv6 ACL.