Chapter 17. Advanced IPv4 Access Control Lists

IPv4 ACLs are either standard or extended ACLs, with standard ACLs matching only the source IP address, and extended matching a variety of packet header fields. At the same time, IP ACLs are either numbered or named. Figure 17-1 shows the categories, and the main features of each, as introduced in the previous chapter.

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Figure 17-1 Comparisons of IP ACL Types

This chapter discusses the other three categories of ACLs beyond standard numbered IP ACLs, and ends with a few miscellaneous features to secure Cisco routers and switches. Note that this chapter’s technical content is identical to the ICND1 ...

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