HP 6120G/XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 358
ACL Configuration Structure, standard, extended, deny any
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IPv4 Access Control Lists (ACLs) Configuring and Assigning an ACL You should carefully plan your ACL application before configuring specific ACLs. For more on this topic, refer to "Planning an ACL Application" on page 9-17. ACL Configuration Structure After you enter an ACL command, you may want to inspect the resulting configuration. This is especially true where you are entering multiple ACEs into an ACL. Also, it will be helpful to understand the configuration structure when using later sections in this chapter. The basic ACL structure includes three elements: 1. ACL type and name: This identifies the ACL as standard or extended and shows the ACL name. 2. One or more deny/permit list entries (ACEs): One entry per line. Element ID Range Minimum ACEs per ACL Maximum ACEs Per ACL Maximum ACEs per Switch Stnd Ext Notes 1 - 99 100 - 199 You can also use an alphanumeric name of up to 64 characters, including spaces. 1 120 1024 In some cases, rule usage by ACLs may consume available resources to the point where this limit cannot be reached. 3. Implicit deny any: Where an ACL is in use, the switch denies any packets that do not have a match with the ACEs explicitly configured in the ACL. The implicit deny any does not appear in ACL configuration listings, but always functions when the switch uses an ACL to filter packets. (You cannot delete the implicit "deny any", but you can supersede it with a "permit any" statement.) 9-34
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