In What Direction Can an Acl Be Configured

ACLs can be configured to block inbound traffic, outbound traffic, or both. An ACL contains an ordered list of access control entries (ACEs). Each ACE specifies permit or deny and a set of conditions the packet must satisfy in order to match the ACE.

Where is ACL configured?

Normally ACLs reside in a firewall router or in a router connecting two internal networks. You can set up ACLs to control traffic at Layer 2, Layer 3, or Layer 4.

Can we configure ACL on switch?

Port ACL. Port ACLs are similar to Router ACLs but are supported on physical interfaces and configured on Layer 2 interfaces on a switch. Port ACL supports only inbound traffic filtering. Port ACL can be configured as three type access lists: standard, extended, and MAC-extended.