Networking - Networking Basics - Discussion

ACLs are lists of instructions you apply to a router's interface. These lists tell the router what kinds of packets to accept and what kinds of packets to deny. Acceptance and denial can be based on certain specifications, such as source address, destination address and port number. ACLs enable you to manage traffic and scan specific packets by applying the ACL to a router interface. Any traffic going through the interface is tested against certain conditions that are part of the ACL.

ACL are a list of introduction used in router interface. According to These introductions, the router decides the what kind of packets to accept and want kind of pockets to Denny, this depends on the source address and the destination address.

They are two types of ACL.

1 standard - it controls the traffic based on the source address.
2 extended - it controls traffic based on both destination address and source address.

An access control list (ACLs) is a table that tells a computer operating system which access rights each user has to a particular system object, such as a file directory or individual file. Each object has a security attribute that identifies its access control list.

Yes @Divya's 2nd point is right. It routes packets according to the routing table.

1-And you can also say that router works is connected between two or more than two networks mean you can connect many different network.

As a network administrator, you are writing a standard ACL that will deny any traffic from the 172.16.0.0/16, but permit all other traffic. Which command should you used?

Standard ACL can permit and deny traffic based on only source address where as Extended ACL can permit and deny trafic based on Both source and destination address.

Access control list has two type of security first standard and second extended both used to configuration security on a router.

Router works network layer.

It routes packets according to the routing table.

Which it maintains statically and dynamically.

Router is a device which used to connect internet basically router convert the analog signal into digital and vice versa.

ACL is a set of data that informs computer operating system which permissions or access rights that each user group has.