4Task RemarksConfiguring a basic ACL RequiredConfigure at least one task.Applicable to IPv4 and IPv6 except that simple ACLsare for IPv6.Configuring an advanced ACLConfiguring an Ethernet frame header ACLCopying an ACL OptionalApplicable to IPv4 and IPv6.Configuring packet filtering with ACLs OptionalApplicable to IPv4 and IPv6.Configuring a time rangeYou can implement ACL rules based on the time of day by applying a time range to them. A time-basedACL rule only takes effect in any time periods specified by the time range.The following basic types of time range are available:• Periodic time range—Recurs periodically on a day or days of the week.• Absolute time range—Represents only a period of time and does not recur.You can create a maximum of 256 time ranges, each with a maximum of 32 periodic statements and 12absolute statements. The active period of a time range is calculated as follows:1. Combining all periodic statements.2. Combining all absolute statements.3. Taking the intersection of the two statement sets as the active period of the time range.To configure a time range:Step Command Remarks1. Enter system view. system-view N/A2. Configure a timerange.time-range time-range-name{ start-time to end-time days [ fromtime1 date1 ] [ to time2 date2 ] |from time1 date1 [ to time2 date2 ]| to time2 date2 }By default, no time range exists.Repeat this command with the same timerange name to create multiple statements fora time range.Configuring a basic ACLConfiguring an IPv4 basic ACLIPv4 basic ACLs match packets based only on source IP addresses.To configure an IPv4 basic ACL:Step Command Remarks1. Enter system view. system-view N/A
