Chapter 14. Access Lists and Regular Expressions

This chapter presents background and configuration information about access lists:

14-1: IP Access Lists

14-2: MAC Address and Protocol Type Code Access Lists

14-3: IPv6 Access Lists

14-4: Regular Expressions

Cisco IOS Software uses access lists for many functions that are described throughout this book. Some of these functions include:

• Packet filtering

• Controlling access to VTY lines

• Classifying traffic for QoS

• Identifying interesting traffic for DDR

• Identifying interesting traffic for VPNs

• Identifying which addresses NAT translates

• Controlling SNMP access to the router

• Authenticating RSH and RCP requests

• Customizing PIM routing configurations

• Filtering output from ...

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