Each network acl has default rules, as shown in table 1. But advanced access lists are added to the interface closest to the “ destination ”. This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related.
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A layer 2 acl defines rules to filter ipv4 and ipv6 packets based on ethernet frame information, such as source media access control (mac) addresses, destination mac. In this example, a basic acl is applied to the ftp module to allow only the specified clients to access the ftp server, improving ftp server security. Defines rules based on the information in ethernet frame headers of packets, such as the source mac address, destination mac address, and ethernet frame protocol type.
Basic access lists are added to the interface close to the “ source ”.
To allow the arp packets with the specified destination and source mac addresses and layer 2 protocol type to pass, configure a rule in a layer 2 acl. In this example, the local user. Firstly, let’s create the advanced acl. If a network acl has no custom rules, the default inbound and outbound rules are applied, denying all traffic in and out.
Defines rules based on information in ethernet frame headers of packets, such as source and destination mac addresses and ethernet frame protocol types.
