Method for realizing message retransmission under routing device

A message forwarding and routing technology, applied in the field of network communication, can solve problems affecting network terminal user services, normal data cannot be forwarded normally, and cannot access 10.1.2.1, etc., to achieve the effect of improving network security

Inactive Publication Date: 2005-02-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the packet forwarding method of general routers stipulates that the same data flow hits the same route, therefore, some network end users may not be able to access 10.1.2.1
[0014] In addition, dynamic routing protocols may be subject to malicious attacks, resulting in normal data not being forwarded normally
For example, in RIP (Routing Information Protocol), network end users may maliciously construct packets whose next hop does not have a routing protocol. After the routing table is matched, normal data will not be forwarded normally, thus affecting the business of network end users.

Method used

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  • Method for realizing message retransmission under routing device

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Embodiment Construction

[0050] The core idea of ​​the present invention is to judge whether the next hop in the routing table is valid by sending the next hops of all routes in the routing table of the routing device to the next hop of the routing table respectively. If the next hop of the route is valid, the route is valid; otherwise, the next hop of the route is considered to be invalid, and the route is invalid; Packet forwarding.

[0051] The core idea of ​​the present invention can be realized by the following method: determine whether the next-hop network equipment of all routes in the routing table of the routing equipment is valid, because only the network equipment with the next-hop effective can carry out normal message forwarding, through Detect whether the next-hop network devices of all routes in the routing table of the routing device are valid to optimize the routing table in the routing device, and then perform packet forwarding control according to the optimized routing table.

[00...

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Abstract

The method includes following steps: the requirement response message is transmitted to all routes in the route table of route equipment, the route receiving the response message is determined; when the router equipment needs to retransmit message, the message will be retransmitted by route receiving the response message in the route table. The invention optimizes the route table according to the next jump network equipment.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for realizing message forwarding in routing equipment. Background technique [0002] At present, the routing device determines the forwarding route of the received message according to the routing table, and forwards the received message according to the forwarding route. [0003] The routing table in the routing device is shown in Table 1: [0004] serial number Destination address mask Next hop out interface A 10.1.1.0 255.255.255.0 20.1.1.1 Ethernet1 / 0 / 0 B 10.1.0.0 255.255.0.0 30.1.1.1 Ethernet1 / 0 / 1 C 10.1.2.0 255.255.255.0 20.1.1.1 Ethernet1 / 0 / 0 D 10.1.2.0 255.255.255.0 30.1.1.1 Ethernet1 / 0 / 1 [0005] In the prior art, the routing device forwards the message according to the routing table: the routing device use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L45/74H04Q3/00H04Q3/545
Inventor 贾海波
Owner HUAWEI TECH CO LTD
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