METHOD AND SYSTEM FOR FILTERING PACKETS BASED ON SOURCE- AND DESTINATION ADDRESSES

摘要

The invention relates to filtering of telecommunica­tion in the network, in which the devices connected to the network have device-specific filtering rules. A firewall component (FW) is arranged in the telecommu­nication network in such a manner that all the tele­communication goes through the firewall component (FW). The firewall component (FW) is connected to a database server (DB), to which the filtering rules are saved. It is possible to connect several firewall com­ponents (FW) to the same database. The firewall compo­nent (FW) retrieves from the database (DE) the sender's and the recipient's filtering rules based on unique identification information. In addition, from the da­tabase (DE) it is possible to retrieve the filtering rules of the service provider or additional filtering rules, e.g. group-specific rules. Each rule is handled separately, and in case the telecommunication is in accordance with all the rules, it is transmitted fur­ther.