Wireless Access Gateway IP Address Allocation
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Solution Overview
Problem
The allocation of public or routable IP addresses to devices that do not intend to use network services leads to wastage of network resources and potential denial of service due to address exhaustion, impacting revenue and service availability.
Innovation Solution
A wireless access gateway system that allocates private IP addresses for limited network connectivity and duration initially, and upon service request, assigns public IP addresses after authentication, using a dual pool system and IP address translation for efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a public IP address is assigned to a device upon connection to the network, then the device can access network services, but public IP addresses are wasted on devices that do not use network services
Solution Approach 1:
The patent segments the IP address allocation process into two distinct phases: initial connection phase using private IP addresses from a first pool, and service access phase using public IP addresses from a second pool. This segmentation allows the system to provide network connectivity with private addresses while reserving public addresses only for devices that actually require them, thereby eliminating waste while maintaining service availability.
Solution Approach 2:
The patent implements preliminary action by allocating private IP addresses to devices before they actually request network services. This allows devices to be authenticated and prepared for service access without consuming public IP addresses prematurely. Only when a device actively requests network services does the system assign a public IP address, ensuring that public addresses are not wasted on inactive devices.
2Adaptability or versatility
If public IP addresses are allocated to all connected devices, then all devices can access network services, but address exhaustion occurs leading to denial of service
Solution Approach 1:
The patent divides the IP address resource into two segments: private IP addresses for general network connectivity and public IP addresses for actual service access. This segmentation strategy allows the network to support a large number of connected devices using private addresses, while only consuming public addresses for devices that genuinely need external network access, thereby preventing address exhaustion while maintaining adaptability.
Solution Approach 2:
The patent changes the IP address parameter dynamically based on device behavior. Initially, devices receive private IP addresses with limited network connectivity. When a device transitions to requesting network services, the system changes the IP address parameter to a public IP address, enabling full network access. This dynamic parameter change ensures efficient utilization of the limited public IP address space.
3Loss of substance
If private IP addresses are allocated for limited duration, then public IP addresses are conserved, but devices need rapid reassignment of addresses
Solution Approach 1:
The patent implements a discard and recover mechanism for private IP addresses. When a device disconnects or stops using network services, its private IP address is quickly released back to the first pool and made available for reassignment to other devices. This rapid recovery process ensures that private IP addresses are continuously reused, conserving public IP addresses while maintaining efficient address utilization through automated pool management.
Data Source
AI summary
Systems and methods are described for IP Address allocation. A computerized method includes receiving at a wireless access gateway a request from a subscriber to connect to a network, allocating a first IP address to the subscriber from a first pool of IP addresses at the wireless access gateway, and assigning a second IP address to the subscriber from a second pool of IP addresses at the wireless access gateway when the subscriber requests a network service.