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A method, system and gateway device for processing packets

A gateway device and message technology, applied in the field of network communication, can solve the problems affecting the processing efficiency of the gateway device and the paralysis of the gateway device, and achieve the effect of avoiding the repeated execution of the message processing process, preventing malicious attacks, and improving the processing efficiency.

Active Publication Date: 2008-04-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] However, since the gateway device discards the MAC address request packet of the user equipment after determining that the user equipment is an unauthorized user, the unauthorized user does not get a response message The text may continue to send MAC address request messages, which will inevitably cause the gateway device to repeatedly execute the above message processing process, seriously affecting the processing efficiency of the gateway device
Once an unauthorized user maliciously attacks and continuously sends a large number of MAC address request packets, it may lead to the paralysis of the gateway device

Method used

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  • A method, system and gateway device for processing packets

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Embodiment Construction

[0019] 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.

[0020] The method provided by the embodiment of the present invention mainly includes: after receiving the MAC address request message sent by the user equipment, querying whether there is an ARP entry consistent with the MAC address and IP address of the user equipment carried in the MAC address request message, If not, shield the message sent by the user equipment.

[0021] Wherein, the MAC address request message may be an ARP request message or an ICMP Ping message. In the following embodiments, an ARP request packet is taken as an example for description.

[0022] FIG. 1 is a flowchart of a method provided by an embodiment of the present invention. In this embodiment, the gateway device enables the DHCP-authorized ARP function, and the saved...

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Abstract

The invention provides a method, a system and equipment for processing a message, wherein, the method includes that: receiving a media access control (MAC) address request message delivered by user equipment, and then querying about whether an ARP item which is identical with the MAC address and the IP address of the user carried by the MAC address request message exists or not, and if not, screening the message delivered by the user. In this way, after determining the user equipment delivering the MAC address request message is a non-authorized user, the method can be used to screen the MAC address request messages delivered by the user equipment to gateway equipment in a given period, preventing the gateway equipment from repeatedly implementing the message processing, enhancing the processing efficiency of the gateway equipment, and also preventing the malicious attacks from the non-authorized users.

Description

technical field [0001] The invention relates to network communication technology, in particular to a method, system and gateway device for processing messages. Background technique [0002] Address Resolution Protocol (ARP, Address Resolution Protocol) is a protocol for converting IP addresses to Ethernet Media Access Control (MAC, Media Access Control) addresses, because communications between Ethernets are addressed using MAC addresses , while various applications based on TCP / IP are addressed based on IP addresses, and various data packets addressed based on IP addresses need to be encapsulated in Ethernet frames addressed based on MAC addresses for transmission. [0003] Dynamic Host Configuration Protocol (DHCP, Dynamic Host Configuration Protocol) is a protocol for dynamically configuring IP addresses. When solving the problem of unauthorized users accessing the network, ARP and DHCP are usually used in combination. The function of ARP authorized by the DHCP server is...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L45/74
Inventor 王莉丽
Owner HUAWEI TECH CO LTD
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