Extended Access Control List 101: Access and Privilege
An extended access control list (ACL) can determine what traffic is allowed or denied access, acting as a gatekeeper for your network. It can give the system administrator setting up the network a higher degree of flexibility and control. It is highly customisable, allowing you to set rules regarding traffic on more than just the IP address. This can help to prevent network attacks while allowing the traffic you want to have access through. An extended ACL can be set up to block particular sources from having access via certain ports on targeted computers. In this way, you can manage traffic going out and coming in to a very specific degree.
What is an extended access list (ACL)?
An access control list is a set of rules allowing or blocking traffic within a network, providing basic security. An extended access list is more flexible and customisable than a standard access control list. An ACL can tell a computer operating system what users have access rights to specific system objects, such as individual files or directories. An extended ACL can serve as an extension of a standard ACL with more specific parameters. This can increase network security while prioritising the flow of traffic within a network. Network security needs to constantly evolve as the world changes and threats evolve. It is even more important to restrict access to potential bad actors while still allowing necessary traffic through uninhibited for a smooth customer and employee interface and digital interaction.
Features of an extended ACL
A standard ACL allows or denies traffic access based on the source IP address, while an extended access control list can filter packets with a higher degree of specification. It can determine the types of traffic it allows or blocks beyond just the IP address to include TCP, ICMP, an