The following table lists terms and definitions used in this ACL configuration discussion.
ACL Configuration Terms and Definitions
| Term | Definition |
|---|---|
| Access Control List (ACL) | A container of permit, deny, and comment entries for the purpose of forwarding or not forwarding packets based upon one or more packet fields, such as source and destination IP address, and protocol. |
| entry | A member of an ACL that either permits or denies forwarding of the packet based upon one or more specified packet fields, or provides an ACL comment. |
| rule | An ACL entry that affects packet forwarding using a permit or deny entry. |
| standard ACL | An ACL for which forwarding decisions are made based only upon a source IP address. |
| extended ACL | An ACL for which forwarding decisions are made based upon the packet protocol, source and destination ip address, or host address, port matching in the case of the TCP or UDP protocols, as well as, optionally, a specified DSCP, ToS, or IP precedence value. |
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