Relay Node Management for Overlay Network Security
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Solution Overview
Problem
Traditional network communication protocols, such as IP, face challenges in securing hosts and networks due to the dual use of IP addresses for both identity and location, leading to vulnerabilities like man-in-the-middle attacks, denial of service attacks, and replay attacks.
Innovation Solution
The implementation of a system that manages communication over networks by using a gateway identifier (GID) based on the overlay network and a network address based on an underlay network, with relay computers ranked based on performance metrics to ensure secure and efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If IP addresses are used for both host identity and location, then network communication is simplified, but security vulnerabilities increase
Solution Approach 1:
The patent segments the dual-purpose IP address into two separate functions: a host identifier (for identity) and a network address (for location). This is achieved by introducing a relay node architecture where the host identifier is mapped to a network address, allowing these two functions to be independently managed and secured, thereby resolving the contradiction between communication simplicity and security.
Solution Approach 2:
The relay node acts as an intermediary between the host and the network. It receives packets with host identifiers, resolves them to network addresses, and forwards them appropriately. This intermediary layer separates the identity function from the location function, enabling secure communication while maintaining operational simplicity.
2Object-affected harmful factors
If overlay networks are used to layer logical network on conventional underlay networks, then security and flexibility improve, but network traffic routing complexity increases
Solution Approach 1:
The relay node automatically performs packet forwarding decisions based on pre-established mappings between host identifiers and network addresses. The system self-manages the routing process without requiring complex manual configuration at each hop, thereby achieving security and flexibility while keeping routing complexity manageable through automated operations.
3Productivity
If relay computers are dynamically selected based on performance metrics, then communication efficiency improves, but system complexity increases
Solution Approach 1:
The system implements feedback mechanisms where relay nodes report their performance metrics (such as latency, throughput, reliability) back to the network management system. Based on this feedback, the system dynamically selects optimal relay nodes for packet routing, achieving improved communication efficiency while managing complexity through automated feedback-driven decision making.
Data Source
AI summary
Embodiments are directed to managing communication over networks. A gateway identifier (GID), a network address, source nodes, relays, or the like, may be determined based on an overlay network. Two or more relays may be ranked based on metrics associated with each relay such that a top ranked relay is designated as a preferred relay.