HP 6120XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 363
Using the CLI To Create an ACL, General ACE Rules, Using CIDR Notation To Enter the ACL Mask
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IPv4 Access Control Lists (ACLs) Configuring and Assigning an ACL Using the CLI To Create an ACL Command access-list (standard ACLs) access-list (extended ACLs) ip access-list (named ACLs) Page 9-40 9-45 9-51 You can use either the switch CLI or an offline text editor to create an ACL. This section describes the CLI method, which is recommended for creating short ACLs. (To use the offline method, refer to "Editing ACLs and Creating an ACL Offline" on page 9-61.) General ACE Rules These rules apply to all ACEs you create or edit using the CLI: ■ ACEs are placed in an ACL according to the sequence in which you enter them (last entered, last listed). ■ You can use the CLI to delete an ACE from anywhere in a given ACL by using the "no" form of the command to enter that ACE. However, when you use the CLI to add an ACE, the new entry is always placed at the end of the ACL. ■ Duplicate ACEs are not allowed in an ACL, however the same ACE can be configured for multiple ACLs. For more information, refer to "Editing ACLs and Creating an ACL Offline" on page 9-61. Using CIDR Notation To Enter the ACL Mask You can use CIDR (Classless Inter-Domain Routing) notation to enter ACL masks. The switch interprets the bits specified with CIDR notation as the IP address bits in an ACL and the corresponding IP address bits in a packet. The switch then converts the mask to inverse notation for ACL use. 9-39
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