A method for implementing local service domain name resolution and access of a bridging network device and a storage medium

CN122247968APending Publication Date: 2026-06-19SHENZHEN NETIS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN NETIS TECH CO LTD
Filing Date
2026-05-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In bridged mode, the transparent forwarding of DNS requests by terminal devices causes local service domain name resolution to fail, and existing technologies lack the ability to adapt to multi-network segment environments, resulting in access failures or poor user experience.

Method used

The system intercepts DNS packets in the bridging data path of network devices, identifies and processes DNS requests through kernel space hook functions, intelligently matches and returns the local service IP address by combining the source address and interface information, constructs a response packet, and prevents the original request from propagating in the bridged network.

Benefits of technology

It enables transparent takeover of local service domain name resolution in bridged mode, improving access success rate, reducing configuration complexity, preventing sensitive information leakage, reducing resolution latency, and improving system throughput.

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Abstract

This invention discloses a method and storage medium for implementing local service domain name resolution and access in a bridged network device. The method includes intercepting and receiving a domain name resolution request message sent by a terminal device in the bridging data path of the network device; parsing and determining whether the message is a resolution request for a local service domain name; if so, obtaining the source address information and the incoming bridge interface information of the message; determining the matching target IP address based on the subnet matching relationship between the source address information and multiple interface IP addresses configured on the bridging interface; and constructing a domain name resolution response message based on the target IP address and sending it to the terminal device. This invention achieves transparent takeover without requiring terminal configuration modifications by intercepting and processing DNS messages at the kernel-level bridging data path. Furthermore, through the source address matching mechanism, it enables intelligent domain name resolution in complex environments such as multi-network segments, ensuring the accuracy of terminal access and improving the efficiency of local service management in bridged network devices.
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