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A VLAN access control list (VACL) provides access control for all packets that are bridged within a VLAN or that are routed into or out of a VLAN. Unlike regular Cisco IOS access control lists that are configured on router interfaces and applied on routed packets only, VACLs apply to all packets.
In computer security, an access-control list (ACL) is a list of permissions [a] associated with a system resource (object or facility). An ACL specifies which users or system processes are granted access to resources, as well as what operations are allowed on given resources. [1] Each entry in a typical ACL specifies a subject and an operation.
Standard ACLs: the simplest type of ACL filtering traffic solely based on source IP addresses. Standard ACLs are typically deployed to control access to network devices for network management or remote access. For example, one can configure a standard ACL in a router to specify which systems are allowed to Telnet to it.
In the Cisco IOS, [1] they are used in several places, for example: To indicate the size of a network or subnet for some routing protocols, such as OSPF. To indicate what IP addresses should be permitted or denied in access control lists (ACLs). A wildcard mask can be thought of as an inverted subnet mask.
ACL: Access control list Security, application layer Access control list, Cisco overview: ADSL: Asymmetric digital subscriber line Telecom ITU-T G.992.5 Annex M, for example AES: Advanced Encryption Standard Security U.S. FIPS PUB 197: ANSI: American National Standards Institute Organization ANSI: API: Application Programming Interface Software ...
Network Admission Control (NAC) refers to Cisco's version of network access control, which restricts access to the network based on identity or security posture.When a network device (switch, router, wireless access point, DHCP server, etc.) is configured for NAC, it can force user or machine authentication prior to granting access to the network.
Firewalk tool, an Open Source tool that determines gateway ACL filters and maps networks by analyzing IP packets responses.; WooterWoot, an Open Source set of tools that builds Check Point, Cisco ASA, or Netscreen policies from logfiles.
ACL—Access Control List; ACL—Active Current Loop; ACM—Association for Computing Machinery; ACME—Automated Classification of Medical Entities; ACP—Airline Control Program; ACPI—Advanced Configuration and Power Interface; ACR—Allowed Cell Rate; ACR—Attenuation to Crosstalk Ratio; AD—Active Directory; AD—Administrative Domain