H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 10)

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Configuring ACLs
NOTE:
Unless otherwise stated, ACLs refer to both IPv4 and IPv6 ACLs throughout this document.
Overview
An access control list (ACL) is a set of rules (or permit or deny statements) for identifying traffic based on
criteria such as source IP address, destination IP address, and port number.
ACLs are primarily used for packet filtering. A packet filter drops packets that match a deny rule and
permits packets that match a permit rule. ACLs are also used by many modules, for example, QoS and
IP routing, for traffic identification.
ACL categories
Category ACL number IP version Match criteria
WLAN ACLs 100 to 199 IPv4 and IPv6 Wireless client SSID
Basic ACLs 2000 to 2999
IPv4 Source IPv4 address
IPv6 Source IPv6 address
Advanced ACLs 3000 to 3999
IPv4
Source/destination IPv4 address, protocols over
IPv4, and other Layer 3 and Layer 4 header
fields
IPv6
Source/destination IPv6 address, protocols over
IPv6, and other Layer 3 and Layer 4 header
fields
Ethernet frame
header ACLs
4000 to 4999 IPv4 and IPv6
Layer 2 header fields, such as source and
destination MAC addresses, 802.1p priority,
and link layer protocol type
ACL numbering and naming
Each ACL category has a unique range of ACL numbers. When creating an ACL, you must assign it a
number for identification. In addition, you can assign the ACL a name for the ease of identification. After
creating an ACL with a name, you cannot rename it or delete its name.
You cannot assign a name to a WLAN ACL.
For a WLAN, or Ethernet frame header ACL, the ACL number and name must be globally unique. For an
IPv4 basic or advanced ACLs, its ACL number and name must be unique among all IPv4 ACLs, and for
an IPv6 basic or advanced ACL, among all IPv6 ACLs. You can assign an IPv4 ACL the same number
and name as an IPv6 ACL.