Guidelines And Restrictions For Using Layer 4 Operators In Acls - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Chapter 31 Understanding Cisco IOS ACL Support
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Configuring OAL on an Interface
To configure OAL on an interface, perform this task:
Command
Step 1
Router(config)# interface {{type
Step 2
Router(config-if)# logging ip access-list cache in
Router(config-if)# no logging ip access-list cache
Step 3
Router(config-if)# logging ip access-list cache out
Router(config-if)# no logging ip access-list cache
1. type = any that supports Layer 3-switched traffic.
Displaying OAL Information
To display OAL information, perform this task:
Command
Router # show logging ip access-list cache
Clearing Cached OAL Entries
To clear cached OAL entries, perform this task:
Command
Router # clear logging ip access-list cache

Guidelines and Restrictions for Using Layer 4 Operators in ACLs

These sections describe guidelines and restrictions when configuring ACLs that include Layer 4 port
operations:
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OL-11439-03
rate-limit number_of_packets
Sets the number of packets logged per second in software.
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Range: 10–1,000,000 (entered without commas).
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Default: 0 (rate limiting is off and all packets are logged).
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threshold number_of_packets
Sets the number of packet matches before an entry is logged.
–
Range: 1–1,000,000 (entered without commas).
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Default: 0 (logging is not triggered by the number of packet matches).
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1
slot/port}
Determining Layer 4 Operation Usage, page 31-6
Determining Logical Operation Unit Usage, page 31-6
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
Guidelines and Restrictions for Using Layer 4 Operators in ACLs
Purpose
Specifies the interface to configure.
Enables OAL for ingress traffic on the interface.
Disables OAL on the interface.
Enables OAL for egress traffic on the interface.
Disables OAL on the interface.
Purpose
Displays OAL information.
Purpose
Clears cached OAL entries.
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