DHCP (Dynamic Host Configuration Protocol) Option 82 based user accessing authority control method

A control method and access authority technology, applied in electrical components, transmission systems, etc., can solve problems such as inability to control user access authority, and achieve the effect of safe and convenient access method and control access authority
CN102255918AInactive Publication Date: 2011-11-23北京神州数码云科信息技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京神州数码云科信息技术有限公司
Publication Date
2011-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a DHCP (Dynamic Host Configuration Protocol) Option 82 based user accessing authority control method and belongs to the field of computer data communication. The method comprises the following steps: adding Option 82 information when a DHCP Snooping module is used for monitoring a DHCP request of a user terminal; sending Option 82 authenticating information of a user by a Radius server after the user terminal successfully acquires an address and passes the authentication; reapplying an address by 802.1x, after the user terminal successfully passes the authentication; adding the authenticated Option 82 information to the DHCP request by the DHCP Snooping module; and allocating another address to the user by a DHCP server according to the Option 82 information. A hardware ACL (Access Control List) item is configured on a converging switcher, thereby limiting the resources which can be accessed by the users with different source IP addresses and further controlling the access authority of the user terminal before and after authentication.
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Description

technical field

[0001] The invention relates to the field of computer data communication, in particular to a DHCP Option 82-based user access authority control method. Background technique

[0002] DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol), as a protocol for dynamically assigning IP addresses, is widely used in various IP networks. , Malicious assignment of IP addresses resulting in a shortage of IP resources, etc., the prior art stipulates the relay agent information option, namely Option 82, when the DHCP address request message sent by the user terminal passes through the access switch, the access switch will enter the DHCP option Add VLAN (Virtual Local Area Network, virtual local area network identification) ID, switch port number and other information, and send it to the DHCP server, so that the DHCP server can associate with user information through VLAN ID, switch port number and other information. Generally, the administrator c...

Claims

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