SYSTEM AND METHOD FOR LIMITING PUBLIC NETWORK ACCESS USER NUMBER ON BASIS OF LINUX BY CPE

摘要

The present invention relates to the field of CPE. Disclosed are a system and method for limiting a public network access user number on the basis of Linux by CPE. The system comprises a DHCP module and a public network user access number limiting module. Each time when the DHCP module checks status information of a LAN-side device, the DHCP module clears an iptables forwarding table rule and clears previous check information, so that the current result is taken as a standard at each check. The public network user access number limiting module is used for clearing recorded black and white lists and not limiting the public network user access number if a public network user access number limiting function is disabled, and obtaining an IP address of the LAN-side device, carrying out terminal identification through DHCP Option60 and distinguishing the device type if the public network user access number limiting function is enabled. By means of the present invention, the maximum quantity for synchronous access to the public network can be limited, individual limitation of the public network access number can be carried out for each terminal type, and the function of individual limitation of the public network access number is enriched.