Layer 2 Switching Commands 263Commands in this SectionThis section explains the following commands:ip access-listUse the ip access-list command in Global Configuration mode to create anAccess Control List (ACL) that is identified by the parameter list-name andto enter IPv4-Access-List configuration mode. If parameterized with thename of an existing access list, additional match clauses are added to the endof the access list.ip access-list list-name [extended]no ip access-list list-name• list-name —Access-list name up to 31 characters in length.Default ConfigurationThis command has no default configuration.Command ModeGlobal Configuration modeUser GuidelinesAccess lists use the extended access list format. Multiple permit and denyclauses and actions may be specified without requiring the access list name tobe entered each time. Permit and deny clauses are entered in order from thefirst match clause when in Access List Configuration mode.ip access-list mac access-list extended renamedeny | permit (IP ACL) remarkdeny | permit (Mac-Access-List-Configuration)service-acl inputip access-group show service-acl interfacemac access-group show ip access-listsmac access-list extended show mac access-lists