Types of ACLs
This switch supports three types of ACLs: MAC, IPv4, and IPv6. Each ACL type is focused on relevant frame/packet characteristics.
You can apply an ACL to an interface to affect or control the traffic arriving on that interface (inbound) or leaving the interface (outbound), or both.
A given interface supports a single ACL application per type, per direction to a total of four interface-applied ACLs. A single interface supports the following ACL applications:
One MAC ACL inbound
One IPv4 ACL inbound
One IPv4 ACL outbound
One IPv6 ACL inbound
Different ACLs of the same type can be used in opposite directions for IPv4. If you apply an ACL of a particular type in a direction that is already in use, the switch replaces the current ACL with the new ACL.