IPv4 ACL configuration task
When configuring an ACL, follow these guidelines:
When defining rules in an ACL, you do not necessarily assign them numbers; the system can do
this automatically. For more information, see
You cannot create a rule with, or modify a rule, to have the same permit/deny statement as an
existing rule in the ACL.
You can only modify the existing rules of an ACL that uses the match order of config. When
modifying a rule of such an ACL, you may choose to change just some of the settings, in which case
the other settings remain the same.
Specify the 802.1p precedence for the rule.
Select the LSAP Type option and specify the DSAP and SSAP fields in the LLC
encapsulation by configuring the following items:
LSAP Type—Indicates the frame encapsulation format.
LSAP Mask—Indicates the LSAP mask.
Select the Protocol Type option and specify the link layer protocol type by
configuring the following items:
Protocol Type—Indicates the frame type. It corresponds to the type-code
field of Ethernet_II and Ethernet_SNAP frames.
Protocol Mask—Indicates the protocol mask.
Select the time range during which the rule takes effect.
Available time ranges are those that have been configured.