The mechanism of action of this method based on the data package and the appropriate action is:-Prohibit the kind of package the data to determine and accept all remaining data package.-Accept the packet types defined and prohibited all remaining data package.Cisco network devices also support packet filtration method this data through the access control list-access control lists (ACLs). ACL allow data streams on the network easier to manage than ever based on address, Protocol, source and destination ports.
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