Get Lab 851 Configuring Acls And Verifying With

Using named ACLs is the preferred method when configuring ACLs. You can name standard and extended ACLs to provide information about the purpose of each ACL. For example, the extended ACL name FTP-FILTER is far easier to identify than the ACL number 100.

ACL best practices and recommendations Be as specific as possible when setting up ACLs. Minimize the size of the source and destination traffic in your ACL rules when possible. Do not define the destination as any (your entire Rackspace environment) when only one destination server needs to be accessed.

Which command can you use to verify that an access control list is applied to an interface? Answer C. The command show ip interface fast 0/1 will display the IP address details of the interface Fast 0/1. Included with these details you will find any outbound and inbound ACLs set on the interface.

Normally ACLs reside in a firewall router or in a router connecting two internal networks. You can set up ACLs to control traffic at Layer 2, Layer 3, or Layer 4.

ACL number for the standard ACLs has to be between 1–99 and 1300–1999. Once the access list is created, it needs to be applied to an interface. You do that by using the ip access-group ACL_NUMBER in|out interface subcommand. in and out keywords specify in which direction you are activating the ACL.

You can use ACLs to control which hosts can access different parts of a network or to decide which types of traffic are forwarded or blocked at router interfaces. For example, you can allow e-mail traffic to be forwarded but not Telnet traffic. ACLs can be configured to block inbound traffic, outbound traffic, or both.

Use the show ip interface command to verify that the ACL is applied to the correct interface. The output will display the name of the access list and the direction in which it was applied to the interface. Use the show access-lists command to display the access-lists configured on the router.