Method for finding operating VRRP network equipment in directly connected network segment and device thereof

A network device and direct connection technology, applied in the field of communication, can solve the problems of complex implementation, static configuration of gateway MAC cannot be realized, changed, etc., and achieve the effect of reducing bandwidth waste

Inactive Publication Date: 2009-11-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is more complicated to deploy MAC authentication or 802.1x authentication
[0010] In order to prevent unauthorized false MAC learning by attackers, the existing technology also proposes to configure the static MAC address of the gateway on the access switch, that is, a port is bound to a MAC address, which cannot be dynamically modified, and the attacker cannot modify the MAC addresses of other ports. The address changes the MAC address of th

Method used

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  • Method for finding operating VRRP network equipment in directly connected network segment and device thereof
  • Method for finding operating VRRP network equipment in directly connected network segment and device thereof
  • Method for finding operating VRRP network equipment in directly connected network segment and device thereof

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Embodiment Construction

[0057] The core idea of ​​the present invention is: a network device running VRRP (such as a VRRP router) periodically sends a VRA (VRRP Router Advertisement) message to announce its own existence and changes in VRRP configuration, or to notify some or all of the VRRP configurations through a VRT (VRRP Router Terminate) message Information about routers in the VRRP group no longer valid. The access switch receives and listens to these VRA or VRT messages, and confirms the members and connected ports of each VRRP router group according to the port receiving the VRA or VRT and the VRRP ID in the VRA or VRT, and forwards the VRRP advertise When sending packets, the packets between members belonging to the same VRRP router group are only forwarded through the port connected to the VRRP router, which avoids the situation that irrelevant devices receive VRRP packets.

[0058] In addition, because the above scheme only passively monitors VRA messages in the access switch, and does no...

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PUM

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Abstract

The invention discloses a method for finding operating VRPP network equipment in a directly connected network segment, and is applicable to a router system comprising an access switch and at least one VRRP group. The method comprises the following steps: the access switch receives and intercepts a VRRP notification message sent by a router of each VRRP group, and confirms members of each VRRO router group and a connected port according to a port which receives the notification message and VRRP ID in the notification message so that the access switch transmits messages between members which belong to the same VRRP router group by the port. The method help avoid broadcasting the VRRP messages of the same group to other routers, or PC (host computer) which is connected to the switch does not join in the VRRP network equipment, thus reducing bandwidth waste.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for discovering network equipment running VRRP in a directly connected network segment. Background technique [0002] In the prior art, the host uses the gateway connected to the host as the default route of the next hop, and the communication method for the host to connect to the network through the gateway is as follows: figure 1 As shown, all hosts (Host A, Host B, and Host C) in the same network segment are respectively configured with the same default route with Gateway as the next hop. When a host sends a message to another network segment, it first The message is sent to the gateway through the default route, and then forwarded to the external network by the gateway, so as to realize the communication between the host and the external network. The default route provides convenience for the configuration operation of the user's host. When the use...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/18H04L45/586
Inventor 袁亚屏
Owner NEW H3C TECH CO LTD
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