Processing method and device for VRRP message

A processing method and packet technology, applied in the field of communication, can solve the problems of security problems, VRRP backup group flapping, etc.

Active Publication Date: 2015-05-06
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when an attacker sends a VRRP packet to a VRRP router through a host, the VRRP router will consider the host as a VRRP router and add the host to the VRRP backup group, causing security issues and VRRP backup group flapping

Method used

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  • Processing method and device for VRRP message
  • Processing method and device for VRRP message
  • Processing method and device for VRRP message

Examples

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Embodiment Construction

[0044] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a VRRP message processing method, such as figure 1 As shown, the method is applied to a network including an access device and multiple VRRP routers, and these multiple VRRP routers form a VRRP backup group. Wherein, the access device specifically may include, but is not limited to, a Layer 2 switch device connected to a VRRP router.

[0045] Such as figure 2 As shown, the processing method of the VRRP message may specifically include the following steps:

[0046] Step 201, when the access device receives the VRRP message, it determines the role type of the interface on the access device that receives the VRRP message.

[0047] The role type may be a host interface, or a router interface of a VRRP backup group (that is, a VRRP backup group composed of multiple VRRP routers), or an interface to be verified. If the role type is a host interface, perform step 202; if the ...

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PUM

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Abstract

The invention discloses a processing method and a processing device for VRRP message; the method comprises the following steps: the access device confirms the role type of the interface while receiving the VRRP message; if the role type is the main machine interface, the access device discards the VRRP message; if the role type is the router interface of the VRRP backup set, the access device transmits the VRRP message; if the role type is the interface to be verified, the access device judges whether the VRRP message meets the specification; if the VRRP message meets the specification, the access device transmits the VRRP message; if the VRRP message does not meet the specification, the access device discards the VRRP message. According to the environment, the oscillation phenomena of the VRRP backup set and the host cut-out phenomena can be avoided.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a VRRP message processing method and equipment. Background technique [0002] Such as figure 1 Shown is a schematic diagram of a VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) network network. The VRRP function can add multiple VRRP routers acting as gateways to a VRRP backup group to form a virtual router. Wherein, the multiple VRRP routers can exchange VRRP packets, so as to determine which VRRP router undertakes the forwarding task through the VRRP election mechanism. Hosts in the LAN only need to configure the virtual router as the default gateway. [0003] Since the VRRP router and the host are in the same Layer 2 network, the VRRP backup group may fluctuate and cause the host to disconnect. For example, when an attacker sends a VRRP packet to a VRRP router through a host, the VRRP router will consider the host as a VRRP router and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/713H04L45/586
Inventor 周天弋
Owner NEW H3C TECH CO LTD
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