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Determine the Order in which ACLs are Used to Classify Traffic.................................................... 111
Example of the order Keyword to Determine ACL Sequence................................................... 112
IP Fragment Handling........................................................................................................................112
IP Fragments ACL Examples..............................................................................................................113
Layer 4 ACL Rules Examples............................................................................................................. 113
Configure a Standard IP ACL.............................................................................................................114
Configuring a Standard IP ACL Filter.................................................................................................115
Configure an Extended IP ACL..........................................................................................................116
Configuring Filters with a Sequence Number.................................................................................. 116
Configuring Filters Without a Sequence Number............................................................................ 117
Established Flag................................................................................................................................. 118
Configure Layer 2 and Layer 3 ACLs.................................................................................................118
Assign an IP ACL to an Interface.......................................................................................................119
Applying an IP ACL............................................................................................................................ 119
Counting ACL Hits.............................................................................................................................120
Configure Ingress ACLs.................................................................................................................... 120
Configure Egress ACLs...................................................................................................................... 121
Applying Egress Layer 3 ACLs (Control-Plane).................................................................................121
IP Prefix Lists......................................................................................................................................122
Implementation Information.......................................................................................................123
Configuration Task List for Prefix Lists............................................................................................. 123
Creating a Prefix List..........................................................................................................................123
Creating a Prefix List Without a Sequence Number........................................................................ 124
Viewing Prefix Lists............................................................................................................................125
Applying a Prefix List for Route Redistribution.................................................................................125
Applying a Filter to a Prefix List (OSPF).............................................................................................126
ACL Resequencing............................................................................................................................ 127
Resequencing an ACL or Prefix List..................................................................................................127
Route Maps........................................................................................................................................129
Implementation Information...................................................................................................... 129
Important Points to Remember........................................................................................................129
Configuration Task List for Route Maps...........................................................................................130
Creating a Route Map....................................................................................................................... 130
Configure Route Map Filters............................................................................................................. 131
Configuring Match Routes................................................................................................................132
Configuring Set Conditions.............................................................................................................. 133
Configure a Route Map for Route Redistribution............................................................................ 134
Configure a Route Map for Route Tagging......................................................................................135
Continue Clause................................................................................................................................135
Logging of ACL Processes................................................................................................................ 136
Guidelines for Configuring ACL Logging..........................................................................................137
Configuring ACL Logging..................................................................................................................137
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