Method for generating dynamic host configuration protocol (DHCP) snooping binding information, and device thereof

Abstract

The embodiment of the invention discloses a method for generating dynamic host configuration protocol (DHCP) snooping binding information, and a device thereof, wherein the method comprises: receivingACK message including target MAC address returned by a DHCP server; querying items corresponding to the target MAC address; according to a first identification position and a second identification position in MAC items, if receiving message discover and message request, generating the DHCP snooping binding information according to input port information in the MAC items, and ensuring source MAC address, the input port information and input VLAN ID in the message discover and the message request to be respectively and correspondingly the same as each other. The embodiment of the invention canavoid the pot corresponding to the MAC address in a MAC table not being shifted caused by MAC address spoofing, and effectively guarantees the accuracy of the DHCP snooping binding information.

Description

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AI Technical Summary

Benefits of technology

This technology helps protect against attacks caused by unauthorized access or denial-of service (DoS) attacks without compromising any legitimate communication between devices connected over networks like LTE/WIMAX connections. It uses unique identifiers called discovery packets instead of IP addresses to identify authoritative sources and destinations. When there're no matches found during this process, they generate their own identification codes based upon these identifier numbers. These code values help filter out invalid data transmitted across different ports while still being valid ones.

Problems solved by technology

This patents describes two technical problem addressed during operation of a Distributed Denial-Of-Service (DDS)-based protocol called DNS Squidup® or Intermediate System Border Rouge (ISR). These issues include denyful packet sending caused by malicious accesses made over public networks like internet connections, causing damage to servers connected to them. Additionally, these solutions involve generating bindings only after all requests have been acknowledged but cannot identify invalid ones due to changes in the underlying identifier assigned to each requester's unique physical location.

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