Chapter 1 Getting to know your Nortel Business Secure Router 222 35Nortel Business Secure Router 222 Configuration — AdvancedBrute force password guessing protectionThe Business Secure Router has a special protection mechanism to discouragebrute force password guessing attacks on the Business Secure Router’smanagement interfaces. You can specify a wait time that must expire before youcan enter a fourth password after entering three incorrect passwords.Content filteringThe Business Secure Router can block web features such as ActiveX controls,Java applets, and cookies, as well as disable web proxies. The Business SecureRouter can block specific URLs by using the keyword feature. The administratorcan also define time periods and days during which content filtering is enabled.Packet filteringThe packet filtering mechanism blocks unwanted traffic from entering or leavingyour network.Universal Plug and Play (UPnP)Using the standard TCP/IP protocol, the Business Secure Router and otherUPnP-enabled devices can dynamically join a network, obtain an IP address, andconvey its capabilities to other devices on the network.Call schedulingConfigure call time periods to restrict and allow access for users on remote nodes.PPPoEPPPoE facilitates the interaction of a host with an Internet modem to achieveaccess to high-speed data networks via a familiar dial-up networking userinterface.