Working with standard ACLs

When creating a numbered standard ACL on a Cisco IOS router, the ACL must first be created on the device and then applied to an interface to filter traffic. Numbered standard ACLs use the following range of numbers:

• 1 to 99
• 1300 to 1999

To create a numbered standard ACL on a Cisco IOS router, use the global configuration command followed by a number within the range of 1 to 99 or 1300 to 1999 on the device. Therefore, with this range of numbers, there can be up to 798 unique standard ACLs on a single router.

Creating a numbered standard ACL

The following is the full syntax used to create a numbered standard ACL:

Router(config)# access-list access-list-number [ deny | permit | remark ] source [ source-wildcard ][ log ]

The remark command will allow you to insert a description for the ACL and the log command will generate a Syslog message when matches are found. Additionally, there can be more than one ACE within an ACL.

The...