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ccna 2020 pdf download.It is also common to create ACLs based on MAC addresses. Numbered ACLs in the range 700.799 classify and control traffic based on MAC addresses.Once the type is determined, control parameters can be set as needed for the ACL. For example, an ACL numbered 700.799 can be used to block a client with a specific MAC address from associating with a predefined access point.Now when classifying traffic, common types of parameters used in security-related ACLs will involve IPv4 and IPv6 addresses, and also TCP and UDP port numbers. For example, an ACL can allow users with a particular IP network address to download files from the Internet using secure FTP. The same ACL can also be used to deny access to all IP addresses using traditional FTP.4.1.1.2 Standard and Extended Numbering IPACLsStandard ACLsACLs in the numbering range 1.99 and 1300.1999 are standard IPv4Ls. standard ACLs check for a match by examining the source IP address field in the packet IP header. This ACL filters packets based entirely on Layer 3 source information.The command syntax used to configure a standard numbered IPACL is shown below.Router(config)# access-list (acl-#} (permit | deny | remark} source-addr [ source-wildcard] [log]If /-# specifies the ACL number. The second value specifies whether to allow or deny traffic from the configured source IP address. The third value is the source IP address that must be matched. The fourth value is the wildcard mask used for the previously configured 1P address to indicate the range. The Log parameter can be added to an ACL entry to indicate that an informational log message should be generated whenever a match occurs.Extended ACLs