9
Access Control Lists (ACLs) for the Series
5300xl Switches
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
ACL Inbound and Outbound Application Points . . . . . . . . . . . . . . . . . . 9-8
Features Common to All ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
General Steps for Planning and Configuring ACLs . . . . . . . . . . . . . . . 9-10
ACL Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
The Packet-Filtering Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
Planning an ACL Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
Traffic Management and Improved Network Performance . . . . . . . . 9-16
Guidelines for Planning the Structure of an ACL . . . . . . . . . . . . . . . . 9-18
ACL Configuration and Operating Rules . . . . . . . . . . . . . . . . . . . . . . . 9-18
How an ACE Uses a Mask To Screen Packets for Matches . . . . . . . . 9-20
Configuring and Assigning an ACL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
General Steps for Implementing ACLs . . . . . . . . . . . . . . . . . . . . . 9-25
9-1
Содержание 6400cl
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