Name Resolution IP Update for Reliable External Device Communication
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Solution Overview
Problem
Existing communication devices face challenges in maintaining accurate IP address associations with external devices, leading to potential communication failures when IP addresses change, especially in network environments where Dynamic Host Configuration Protocol (DHCP) servers dynamically assign addresses.
Innovation Solution
The communication device includes a controller that performs name resolution to verify IP address matches and updates IP addresses in memory settings when mismatches are detected, ensuring accurate IP address associations through name resolution and storage processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication device stores IP addresses in memory settings, then communication with external devices is enabled, but communication failures occur when IP addresses change dynamically
Solution Approach 1:
The communication device performs name resolution to obtain the current IP address of the external device and compares it with the stored IP address in memory settings. This feedback mechanism detects IP address changes and triggers automatic updates to the stored settings, ensuring communication reliability while adapting to dynamic IP address changes.
Solution Approach 2:
The system automatically detects IP address changes through name resolution and updates the stored IP address settings without requiring manual intervention. The communication device serves itself by maintaining accurate IP address associations through automated detection and update processes.
2Measurement precision
If the communication device performs name resolution to verify IP addresses, then IP address accuracy is improved, but system complexity increases
Solution Approach 1:
The communication device performs name resolution in advance to obtain the current IP address of the external device before attempting communication. This preliminary action ensures that the stored IP address settings are accurate, preventing communication failures due to IP address changes.
3Stability of the object's composition
If the communication device automatically updates IP addresses in memory, then communication stability is enhanced, but processing time increases
Solution Approach 1:
The communication device performs name resolution periodically or at specific intervals to check for IP address changes. This periodic action maintains communication stability by ensuring IP address settings are current, while minimizing processing time by not continuously monitoring for changes.
Data Source
AI summary
A communication device includes a controller configured to: receive a first IP address of a first external device as an input by a user; store the first IP address received as a first setting in a memory; receive first name information including a first name of the first external device as an input by the user; store the first name information received as a second setting different from the first setting in the memory; obtain a second IP address of the first external device by performing a name resolution with the first name; determine whether the second IP address matches with the first IP address; and in a case where the controller determines that the second IP address does not match with the first IP address, perform a specific process that is relevant to storing the second IP address in the memory as the first setting.