What is a standard ACL?

What is a standard ACL? Standard access control lists (ACLs) allow you to evaluate only the source IP address of a packet. Standard ACLs are not as powerful as extended access lists and can’t distinguish between the types of IP traffic, but they are less CPU intensive for the device.

What is the difference between standard ACL and extended ACL? There are two types of IPv4 ACLs: Standard ACLs: These ACLs permit or deny packets based only on the source IPv4 address. Extended ACLs: These ACLs permit or deny packets based on the source IPv4 address and destination IPv4 address, protocol type, source and destination TCP or UDP ports, and more.

When would you use a standard 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. These are the Access-list which are made using the source IP address only.

How do you know if ACL is working? One way to see your access lists and how they’re applied is to use the show run command to see the active configuration. The next lines show the output of a show run command with some of the unrelated lines removed: Rtr1#show run hostname Rtr1 ! interface Ethernet0 ip address 192.168.

What is a standard ACL? – Additional Questions

How do you build an ACL?

  1. If the connection you want to create the ACL for is not open, search for and select the connection.
  2. Select Add a new list from the Access Control List (ACL) drop-down list.
  3. Enter a name and description.
  4. Enter the remaining ACL settings. Setting. Description. Access for Users.
  5. Click Save New ACL.

How do you show ACL?

To display the contents of current access lists, use the show access-lists privileged EXEC command. To display the contents of all current IP access lists, use the show ip access-list EXEC command.

How do you count ACL hits?

Shows the hit count of the number of times an ACL has matched a packet or frame for ACEs with the count keyword. For ACEs without the count keyword, a dash is shown in place of a hit count. Specifies the ACL type: ip for IPv4, ipv6 for IPv6, or mac for MAC.