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CHAPTER
33-1
Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
33
Configuring Network Security with ACLs
This chapter describes how to use access control lists (ACLs) to configure network security on the
Catalyst 4500 series switches.
Note For complete syntax and usage information for the switch commands used in this chapter, refer to the
Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications at
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/index.htm.
This chapter consists of the following major sections:
• Understanding ACLs, page 33-1
• Hardware and Software ACL Support, page 33-5
• TCAM Programming and ACLs, page 33-6
• Layer 4 Operators in ACLs, page 33-7
• Configuring Unicast MAC Address Filtering, page 33-11
• Configuring Named MAC Extended ACLs, page 33-11
• Configuring VLAN Maps, page 33-12
• Displaying VLAN Access Map Information, page 33-19
• Using VLAN Maps with Router ACLs, page 33-19
• Configuring PACLs, page 33-22
• Using PACL with VLAN Maps and Router ACLs, page 33-26
Understanding ACLs
This section contains the following subsections:
• ACL Overview, page 33-2
• Supported Features That Use ACLs, page 33-2
• Router ACLs, page 33-3
• Port ACLs, page 33-4
• VLAN Maps, page 33-5