How do you resequence an ACL?

Resequencing an Access Control List (ACL) in Cisco devices is performed to reorganize the sequence numbers of the ACL entries, which allows for better management and adjustment of the rules. The chosen answer accurately reflects the command syntax used in Cisco IOS.

The command “ip access-list resequence acl-id starting-seq-num increment” includes all the necessary components: it specifies that you are working with an IP access control list, indicates which specific ACL you are resequencing by using the ACL identifier, sets the starting sequence number where the resequencing begins, and establishes the increment value to apply to each subsequent entry.

Using this command effectively adjusts the sequence numbers of the ACL without having to remove and recreate rules individually, streamlining the process of managing them. This functionality is particularly useful in dynamic network environments where access policies need frequent updates.

Understanding this command is essential for network administrators, as it provides a systematic approach to maintaining order in ACL entries, which can become increasingly complex as more rules are added.