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Address allocation method and device

A distribution method and a distribution device technology are applied in the field of network communication to achieve the effect of reducing deployment load and simplifying network deployment

Active Publication Date: 2020-01-03
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides an address allocation method and device to solve the problem of deploying VPN on the interconnection interface between DHCP REALY equipment and DHCP SERVER when many users VPN access

Method used

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  • Address allocation method and device
  • Address allocation method and device

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] see figure 2 , figure 2 The flow chart of the method provided by the present invention. Such as figure 2 As shown, the process may include the following steps:

[0032] Step 201, the DHCP RELAY device receives the first type of DHCP protocol message sent by the local user to apply for an IP address, determines the VPN that the user accesses, and sends the first type of DHCP protocol message, the VPN corresponding to The routing distinguisher (RD: Route-Distinguisher) is encapsulated into the first routing message and sent to the DHCP SERVER.

[0033] Here, the RD corresponding to the VPN is used to identify the VPN, and different VPNs are identified by different RDs.

[0034] Based on DHCP, the DHCP protocol message sent by the user...

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PUM

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Abstract

This application provides an address allocation method and device. In this application, BGP has played the role of a bridge between the DHCP RELAY equipment and the DHCP SERVER, and the DHCP RELAY equipment embeds the VPN information (specifically the RD of the VPN) accessed by the user into the Update message of the BGP to help The DHCP SERVER determines the VPN information that the user accesses, so that the interconnection interface between the DHCP RELAY device and the DHCP SERVER is no longer bound to the VPN that the user accesses. The problem of deploying a large number of VPN configurations between SERVERs greatly reduces the load of network deployment and simplifies network deployment.

Description

technical field [0001] The present application relates to network communication technology, in particular to an address allocation method and device. Background technique [0002] There are two ways to obtain an IP address by using the Dynamic Host Configuration Protocol (DHCP: Dynamic Host Configuration Protocol), one is to obtain the IP address directly from the DHCP server (SERVER), and the other is through the DHCP relay (RELAY) method Obtain IP address indirectly from DHCP SERVER. [0003] Applied in the DHCP RELAY mode, the users connected by the DHCP RELAY device generally access through a virtual private network (VPN: Virtual Private Network), so as to realize that the user's access is private and isolated. For VPN access users, the DHCP RELAY device binds the VPN that the user accesses on the user-side interface. After the DHCP RELAY device is bound to the VPN, if it wants to reach the DHCP server to obtain an IP address for the user, it needs to see the DHCP serve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L29/12
CPCH04L12/4641H04L61/5014H04L12/46H04L61/00
Inventor 汪亮吴文晁岳磊
Owner NEW H3C TECH CO LTD
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