Huawei ACL Default Matching Order: Config vs Auto
Short answer
A TRUE: Huawei ACLs use configuration (config) order by default, evaluating rules by rule ID unless auto is explicitly configured.
Question
Key Takeaways
It tests whether you know that Huawei ACL default match-order is config, and the trap is assuming auto is the default because its name suggests automatic behavior.
On Huawei devices, ACL rules are evaluated by default in configuration (config) order, not automatic order. This page confirms the statement is TRUE and explains how ACL match-order affects rule evaluation.
Common mistake: Choosing B (FALSE) because auto sounds like the default; Huawei uses config by default, so rules are evaluated in their configured rule-ID order unless match-order auto is explicitly set.
Expert Analysis
Where the order applies. When a packet reaches an interface with an ACL, the device does not evaluate every rule and combine the results. It walks the ACL rule list until one rule matches, and the permit or deny action of that first matching rule is applied. The question is therefore about the default order of that walk, not about ACL types or rule numbering.
Config vs auto. Huawei VRP supports two ACL matching orders: config and auto. In config order, rules are evaluated in the order they were configured, represented by ascending rule IDs. In auto order, the device evaluates rules according to their precision or depth, so more specific rules can be checked first regardless of configuration sequence. The default for an ACL is config, so unless you explicitly create or modify the ACL with match-order auto, the configuration order governs matching.
Why the statement is true. The statement says the configuration order (config) is the default matching order for ACL rules on Huawei devices. That is exactly the documented default. The correct option is therefore A (TRUE). A common distractor is to pick B because auto sounds like the automatic or default behavior; in Huawei ACLs, auto is the non-default, explicitly selected matching mode. The supplied comment makes the same point: Huawei supports auto and config, and the default is config.
What this means in practice. If you create rules without specifying an ID, Huawei normally assigns IDs in steps (for example 5, 10, 15), and under default config matching the first matching rule in that order wins. If you later need precision-based evaluation, you must choose auto; you should not assume the device silently reorders rules by specificity. This is why the answer turns on the match-order default rather than on the number of rules or the ACL number range.
Exam Strategy
When a true/false item names a default, check whether it uses the exact CLI keyword and whether that keyword is documented as the default, not the more intuitive-sounding alternative. For Huawei ACL questions, separate rule ordering from rule numbering: rule IDs usually increment by 5, but match-order decides evaluation. Seeing config and auto should trigger the fact that config is the default and auto must be explicitly configured.
Frequently Asked Questions
What is the difference between ACL match-order config and auto on Huawei devices?
If I do not specify rule IDs in a Huawei ACL, how are rules ordered?
Does the first matching ACL rule take effect on Huawei devices?
Community Votes
67% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 1 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 1
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4243643 👍 2 Answered AHuawei devices support two matching orders: automatic order (auto) and configuration order (config). The default matching order is config.
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