Network Interface Subnet Segmentation for Data Transmission Accuracy
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Solution Overview
Problem
Existing information processing apparatuses face issues with data transmission errors due to incorrect selection of network interfaces when IP addresses from the same subnet are used, leading to ambiguity in determining the correct network interface for data transmission.
Innovation Solution
The apparatus includes a specifying unit to identify the subnet through which data pass, a setting unit that sets a network address from a different subnet on the second network interface, and an assigning unit that leases IP addresses from the same subnet to connected devices, ensuring accurate data transmission by distinguishing between network interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IP addresses from the same subnet are used on multiple network interfaces, then network address assignment flexibility is improved, but data transmission reliability deteriorates due to interface selection ambiguity
Solution Approach 1:
The patent segments the network address space by assigning different subnet ranges to different network interfaces (first network interface and second network interface). This segmentation prevents address confusion and enables reliable interface selection by ensuring that each interface operates in a distinct address space, thereby resolving the contradiction between address flexibility and transmission reliability.
Solution Approach 2:
The patent applies local quality by configuring specific subnet assignments for each network interface based on its functional role. The first network interface is assigned a first subnet for general network communication, while the second network interface is assigned a second subnet for direct wireless connections. This localized address allocation ensures that data transmission routes can be accurately determined based on destination address matching.
2Reliability
If IP addresses from different subnets are assigned to network interfaces, then data transmission accuracy is improved, but network configuration complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring distinct subnet assignments for each network interface before operation. The first network interface is pre-assigned a first subnet, and the second network interface is pre-assigned a second subnet. This preliminary configuration eliminates runtime ambiguity in interface selection and simplifies the transmission determination process, as the system can rely on predetermined address-space mappings rather than complex real-time analysis.
3Adaptability or versatility
If the apparatus acts as a group owner for direct wireless connection, then connection versatility is improved, but subnet management complexity increases
Solution Approach 1:
When the apparatus functions as a group owner for direct wireless connections, the patent segments the address management by assigning a dedicated second subnet to the second network interface. This segmentation isolates the wireless direct connection address space from the general network address space, enabling independent management of each subnet without interference. The apparatus can thus maintain multiple connection types (wired network and wireless direct) with distinct address ranges, simplifying overall subnet management despite increased connection versatility.
Data Source
AI summary
An information processing apparatus includes plural network interfaces, a specifying unit, a setting unit, and an assigning unit. The plural network interfaces include a first network interface for connection of the apparatus to a network, and a second network interface for direct wireless connection of another device to the apparatus. The specifying unit specifies a subnet by way of which data transmitted from the first network interface pass. The setting unit sets a network address that belongs to a subnet that is different from the specified subnet to the second network interface. The assigning unit assigns a network address that belongs to a subnet that is the same as the network address set to the second network interface to the other device.