An Access Control List (ACL) can filter packets based on specified matching conditions, including source and destination IP addresses.
Huawei ' s HCIA-Datacom training material explains that ACLs provide traffic classification and access-control capabilities.
To restrict remote management access, an administrator can configure ACL rules that permit connections originating from authorized management IP addresses and deny connections from other sources.
The ACL must be applied to the appropriate management service or user interface for the restrictions to take effect.
Option A is incorrect because telemetry is primarily used for collecting and reporting operational data.
Option C is incorrect because SNMP is designed for network monitoring and management rather than implementing the specified login-source filtering mechanism.
Option D provides authentication, authorization, and accounting, but it is not the direct mechanism requested for filtering specific source IP addresses.
Therefore, option B is correct.
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