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What is the range of extended ACL numbers?

1 - 99

100 - 199, 2000 - 1699

The range of extended Access Control List (ACL) numbers spans from 100 to 199 and from 2000 to 2699. This numbering allows for a broader category of access control lists that provide more granular control over traffic by enabling filtering based on both protocol types (like TCP, UDP, etc.) and various attributes such as source and destination IP addresses.

While other regions of numbering are reserved for standard ACLs and other types of configurations, the specific ranges designated for extended ACLs ensure that network engineers can accurately implement and manage traffic filtering in a more sophisticated manner. The methodology is crucial for troubleshooting and enhancing network security, as extended ACLs can evaluate packet header information in detail, instead of just basic source IP addresses.

Understanding these ranges is important for proper network configuration and ensuring that the right access controls are in place to protect network resources.

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200 - 299

300 - 399

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