Blocking connection to harmful information in an internet service provider network

摘要

A system 400 for blocking connection to harmful information on the Internet includes a plurality of harmful information blocking system PoPs 400; a harmful information control list DB server 200 for transmitting a control list DB of blocking targeted harmful information to the plurality of harmful information blocking system PoPs in real-time; a subscriber control device 300 for selecting one harmful information blocking system PoP among the plurality of harmful information blocking system Pops on the basis of state information in a harmful information blocking system PoP monitoring device, so as to transmit traffic of the harmful information blocking service subscriber thereto. Harmful information blocking system PoPs may be selected according to their operational status, loading and distance such as number of hops. Subscribers and non-subsribers can be separately treated by means of tunneling protocol or policy based routing. Packet mirroring may be used by the blocking system PoPs and may include redundant switches (422, 423, fig.5).