Method for solving IP address conflict when SLB performs SNAT

An IP address and address pool technology, applied in electrical components, transmission systems, etc., can solve problems such as IP address conflicts, and achieve the effects of good compatibility, avoidance of waste, and high controllability

Inactive Publication Date: 2020-04-14
UNICLOUD (NANJING) DIGITAL TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for solving IP address conflicts when SLB does SNAT, and automatically distributes I

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  • Method for solving IP address conflict when SLB performs SNAT
  • Method for solving IP address conflict when SLB performs SNAT
  • Method for solving IP address conflict when SLB performs SNAT

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] see figure 1 Shown, the present invention is a kind of method for solving IP address conflict when SLB is done SNAT, comprises the following steps:

[0026] A00: The SDN controller pre-configures an address pool and initializes the data through the API;

[0027] A01: When creating a virtual service IP, the SDN controller takes out the IP with the smallest id from the unallocated IPs according to the status of the IP addresses in the address pool and puts i...

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Abstract

The invention discloses a method for solving IP address conflicts when SLB performs SNAT, and relates to the technical field of network clusters. The method comprises the steps that an SDN controllerconfigures an address pool in advance; when the virtual service IP is created, the SDN controller takes out the IP with the minimum id from the IPs in the unallocated state according to the state of the IP address in the address pool and stores the IP in storage for later use; when a real server group is created, the IP is added into the SNAT_Pool to replace the original VIP; an address of an entry on the Border is added as an IP of SNAT_Pool; after the LB instance is safely released, the IP in the SNAT_Pool is recycled by the address pool. According to the method, the IP address is automatically distributed to the SNAT_Pool through the SDN controller, and the IP address in the SNAT_Pool can be dynamically maintained, so the high controllability is achieved; the problem of IP address conflict when SNAT_Pool is configured on LB equipment is solved.

Description

technical field [0001] The invention belongs to the technical field of network clusters, and in particular relates to a method for solving IP address conflicts when SLB performs SNAT. Background technique [0002] Load Balance (Load Balance) is a server or network equipment cluster technology. Load balancing distributes specific services to multiple servers or network devices, thereby improving service capabilities and ensuring high availability of services. [0003] see figure 2 As shown in the figure, it shows the implementation method of the existing load balancing function and the flow direction; in the cloud network environment, the firewall and LB devices are hung on both sides of the Border. After the customer uses the load balancing function, when accessing the LB from the external network, the message enters the Border, and then enters the firewall. DNAT is performed on the firewall to convert the destination address from the EIP bound to the SLB to a VIP. After ...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/5061H04L61/5046H04L61/5007
Inventor 范生越
Owner UNICLOUD (NANJING) DIGITAL TECH CO LTD
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