clear access-list ipv4
To clear IPv4 access list counters, use the clear access-list ipv4 command in EXEC mode.
clear access-list ipv4 access-list name [ sequence-number | hardware { ingress | egress}] [interface type interface-path-id] [ location node-id | sequence number ]
Syntax Description
access-list-name | Name of a particular IPv4 access list. The name cannot contain a spaces or quotation marks, but can include numbers. | ||
sequence-number | [Optional] Specific sequence number with which counters are cleared for an access list. Range is 1 to 2147483644 . | ||
hardware | Identifies the access list as an access group for an interface. | ||
ingress | Specifies an inbound direction. | ||
egress | Specifies an outbound direction. | ||
interface | [Optional] Clears the interface statistics. | ||
type | Interface type. For more information, use the question mark [?] online help function. | ||
interface-path-id | Physical interface or virtual interface.
For more information about the syntax for the router, use the question mark [?] online help function. | ||
location node-id | [Optional] Clears hardware resource counters from the designated node. The node-id argument is entered in the rack/slot/module notation. | ||
sequence number | [Optional] Clears counters for an access list with a specific sequence number. Range is 1 to 2147483644 . |
Networking Basics: How to Configure Standard ACLs on Cisco Routers
The quick definition: An access control list [ACL] is an ordered list of rules used to filter traffic. Each rule states what's permitted or what's denied. When a packet attempts to enter or leave a router, it's tested against each rule in the list — from first to last. If the packet matches a rule, its outcome is determined by the conditions of the statement: If the first rule the packet matches is a permit statement, it's permitted; if it's a deny statement, it's denied.
CBT Nuggets trainer Jeremy Cioara talks more about this topic in the following MicroNugget:
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