Chapter 35
Configuring Network Security with ACLs
Stack members perform these ACL functions:
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When a stack master fails and a new stack master is elected, the newly elected master reparses the backed
up running configuration. (See
is part of the running configuration is also reparsed during this step. The new stack master distributes
the ACL information to all switches in the stack.
Configuring IPv4 ACLs
Configuring IP v4ACLs on the switch is the same as configuring IPv4 ACLs on other Cisco switches and
routers. The process is briefly described here. For more detailed information on configuring ACLs, see
the "Configuring IP Services" section in the "IP Addressing and Services" chapter of the Cisco IOS IP
Configuration Guide, Release 12.2. For detailed information about the commands, see the Cisco IOS IP
Command Reference, Volume 1 of 3: Addressing and Services, Release 12.2.
The switch does not support these Cisco IOS router ACL-related features:
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These are the steps to use IP ACLs on the switch:
Create an ACL by specifying an access list number or name and the access conditions.
Step 1
Apply the ACL to interfaces or terminal lines. You can also apply standard and extended IP ACLs to
Step 2
VLAN maps.
These sections contain this configuration information:
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They receive the ACL information from the master switch and program their hardware.
They act as standby switches, ready to take over the role of the stack master if the existing master
were to fail and they were to be elected as the new stack master.
Non-IP protocol ACLs (see
IP accounting
Inbound and outbound rate limiting (except with QoS ACLs)
Reflexive ACLs or dynamic ACLs (except for some specialized dynamic ACLs used by the switch
clustering feature)
ACL logging for port ACLs and VLAN maps
Creating Standard and Extended IPv4 ACLs, page 35-8
Applying an IPv4 ACL to a Terminal Line, page 35-19
Applying an IPv4 ACL to an Interface, page 35-20
Hardware and Software Treatment of IP ACLs, page 35-22
Troubleshooting ACLs, page 35-22
IPv4 ACL Configuration Examples, page 35-23
Chapter 5, "Configuring the Switch
Table 35-1 on page
35-8) or bridge-group ACLs
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
Configuring IPv4 ACLs
Stack.") The ACL configuration that
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