A method and system for ipv4 access policy routing control

Abstract

The invention discloses a method for issuing and controlling IPv4 access policy routing: when a WAN port of a CPE requests an OLT access device to access an IPv4 address through a PPPoE / IPoE mode, the corresponding CPE client is dynamically authorized and issued by a RADIUS server. The network policy route is sent to the OLT access device, and the OLT user session management delivers the user policy route to the routing table entry management. Through the method of the invention, there is no need to manually configure static routes for upstream access routing equipment, which facilitates equipment deployment, is compatible with old equipment and more networking scenarios, greatly reduces operating costs, and increases the flexibility of the system and the deployment of CPE gateway equipment. The flexibility meets the scenario where the public network address of the downstream network of the CPE is not dynamically obtained from the OLT device. The present invention also provides a corresponding IPv4 access policy routing control system.

Description

technical field [0001] The invention belongs to the technical field of communication, and more particularly, relates to a method and system for issuing and controlling IPv4 access policy routes. Background technique [0002] First, the technical terms in this patent application are explained and explained: [0003] CPE: Customer Premise Equipment, customer premise equipment, is actually a mobile signal access device that receives mobile signals and forwards them with wireless WIFI signals. [0004] DHCP: Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol. [0005] NAT: Network Address Translation, which is used to translate between private network addresses and public network addresses. [0006] CR: Core Route, the core router, in the Internet, is located in the core of the network, mainly used for data packet routing and forwarding, and generally has a larger throughput router. [0007] OLT: optical line terminal, a terminal device used to connect o...

AI Technical Summary

Problems solved by technology

[0009] For a special networking scenario, that is, the CPE gateway does not have the route publishing function, and the customer network (the customer network is under the CPE) obtains a public network address from another DHCP server through static configuration or DHCP. In this case, it is It is said that the customer network and the CPE do not access the external network through traditional NAT. In this scenario, because the upstream CR does not know the routing information of the customer network, the customer network cannot access the external network.

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