What are the basic features of an access control list?
Access Control List (ACL) Feature Overview and Configuration Guide Show An Access Control List is one filter, or a sequence of filters, that are applied to an interface to either block or pass (or when using QoS, apply priority to) packets that match the filter definitions. ACLs are used to restrict network access by hosts and devices and to control network traffic. Access Control Lists used in AlliedWare Plus are separated into two different types, software ACLs and hardware ACLs. Hardware ACLs are applied directly to interfaces, or are used for QoS classifications. Software ACLs are applied to Routing and Multicasting. This guide describes Access Control Lists (ACLs), and general ACL configuration information. ACL Feature Overview and Configuration Guide (Rev L) What Is an Access Control ListAn access control list (ACL) contains rules that grant or deny access to certain digital environments. There are two types of ACLs:
Originally, ACLs were the only way to achieve firewall protection. Today, there are many types of firewalls and alternatives to ACLs. However, organizations continue to use ACLs in conjunction with technologies like virtual private networks (VPNs) that specify which traffic should be encrypted and transferred through a VPN tunnel. Reasons to use an ACL:
Access-Lists (ACL)
Access-list (ACL) is a set of rules defined for controlling network traffic and reducing network attacks. ACLs are used to filter traffic based on the set of rules defined for the incoming or outgoing of the network. ACL features –
Once the access-list is built, then it should be applied to inbound or outbound of the interface:
Types of ACL –
Also, there are two categories of access-list:
Rules for ACL –
Advantages of ACL –
Article Tags : Computer Networks Practice Tags : Computer Networks Read Full Article Access Control List: Everything To Know in 6 Easy PointsIntroductionPresently, the need to protect your Data from outsiders has risen due to the amount of illegal hacking performed. Regardless of type, size, scope, or industry, every company that wants to survive must always be ready to defend and protect its essential data. ACL in networking is a crucial element used in the Security of computer networks. ACL full form in networking is Access Control lists. ACL means keeping an eye on the data packets that flow in and out the network and compares it with a set of standards. In this article, let us try to answer What is ACL? We will also discuss its types and components. Additionally, we will learn how to implement it in a Router., In this article let us look at:
1) What is ACLAccess Control lists are a kind of Stateless Firewall that monitors every packet flowing in the network and forwards the packet or blocks it based on the rules mentioned. It either allows, restricts, or blocks the packet in the system. Accordingly, decisions are made. The analysis can evolve from, the destination address, source, protocols implemented, or any other information. It can be implemented in any networking device like a router, firewalls, hubs, etc. 2) Why Use ACLAs the definition suggests,the Its primary purpose of an ACL is Security. Others include-
It controls the flow by regulatingIt controls every packet that leaves or enters the network,. It makes sure that no unnecessary or irrelevant packet floats in the network. This can also save the host from attacks like DDOS (Denial of Service Attacks), as these attacks occur when hackers overflow the host network with lots of data packets.
As there is only the local traffic that was allowed by the Network Engineers, it leads to better performance of the overall network.
The main objective of ACL is to provide Security to your network, as Admin can give access and deny access to anyone. You can restrict users, packets from specific networks, or packets following a particular protocol, in the same way, permission to packets can also be given. Earlier, ACL was the only way to implement Firewalls, but now there are many other options available. Companies still use ACL along with others like VPN.
Access Control lists also help in monitoring the network packets that are entering and exiting the network. |