Configuring Access Control Lists 52320Configuring Access Control ListsThis chapter describes how to configure Access Control Lists (ACLs),including IPv4, IPv6, and MAC ACLs. This chapter also describes how toconfigure time ranges that can be applied to any of the ACL types.The topics covered in this chapter include:• ACL Overview• Configuring ACLs (Web)• Configuring ACLs (CLI)• ACL Configuration ExamplesACL OverviewAccess Control Lists (ACLs) are a collection of permit and deny conditions,called rules, that provide security by blocking unauthorized users andallowing authorized users to access specific resources.ACLs can also provide traffic flow control, restrict contents of routingupdates, and decide which types of traffic are forwarded or blocked. ACLs canreside in a firewall router, a router connecting two internal networks, or aLayer 3 switch, such as a PowerConnect M6220/M6348/M8024/M8024-kswitch .You can also create an ACL that limits access to the management interfacesbased on the connection method (for example, Telnet or HTTP) and/or thesource IP address.The PowerConnect M6220, M6348, M8024, and M8024-k switches supportACL configuration in both the ingress and egress direction. Egress ACLsprovide the capability to implement security rules on the egress flows (trafficleaving a port) rather than the ingress flows (traffic entering a port). Ingressand egress ACLs can be applied to any physical port, port-channel (LAG), orVLAN routing port.