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CCENT/CCNA ICND1 100-101 Official Cert Guide by Wendell Odom

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Extended IP ACL Configuration

Because extended ACLs can match so many different fields in the various headers in an IP packet, the command syntax cannot be easily summarized in a single generic command. However, for CCNA preparation, you can rely mainly on two references for syntax, as listed in Table 23-5.

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Table 23-5 Extended IP Access List Configuration Commands

The configuration process for extended ACLs mostly matches the same process used for standard ACLs. You must choose the location and direction in which to enable the ACL, particularly the direction, so that you can characterize whether certain addresses and ports will be either the ...

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