9name for the ease of identification. After creating an ACL with a name, you can neitherrename it nor delete its name.You cannot assign a name for a WLAN ACL.For a WLAN ACL, the ACL number and name must be globally unique. For an IPv4 basicor advanced ACLs, its ACL number and name must be unique among all IPv4 ACLs, andfor an IPv6 basic or advanced ACL, among all IPv6 ACLs. You can assign an IPv4 ACLthe same number and name as an IPv6 ACL.Match orderThe rules in an ACL are sorted in certain order. When a packet matches a rule, thedevice stops the match process and performs the action defined in the rule. If an ACLcontains overlapping or conflicting rules, the matching result and action to takedepend on the rule order.Two ACL match orders are available:config: Sorts ACL rules in ascending order of rule ID. A rule with a lower ID ismatched before a rule with a higher ID. If you use this approach, check rulecontent and order carefully.auto: Sorts ACL rules in depth-first order. Depth-first ordering ensures that any subsetof a rule is always matched before the rule. The depth-first ordering procedurevaries with ACL categories, as shown in Table 2 .NOTE:The rule order of WLAN ACLs can only be config.Table 2 Sorting ACL rules in depth-first orderACL category Depth-first rule sorting proceduresIPv4 basic ACL1. The rule configured with a VPN instance takes precedence.2. The rule with more 0s in the source IP address wildcard mask takesprecedence. More 0s means a narrower IP address range.3. The rule with a smaller rule ID takes precedence.