TRENDnet TDM-E400 User's Guide - Page 157

Chapter 14. Configuring Filters and Blocking Protocols Blocking Protocols The Blocked Protocols feature enables you to prevent the ADSL2+ Ethernet Modem Router from passing any data that uses a particular protocol. Unlike the IP filter feature, you cannot specify additional criteria for blocked protocols, such as particular users or destinations. However, when you are certain that a particular protocol is not needed or wanted on your network, this feature provides a convenient way to discard such data before it is passed. To display the Blocked Protocols page, click the Services tab, and then click Blocked Protocols in the task bar. The Blocked Protocols page displays: Figure 66. Blocked Protocols Page WARNING Blocking certain protocols may disrupt or disable your network communication or Internet access. If you are unfamiliar with how your network or Internet connection uses these protocols, contact your ISP before disabling. The following list describes each of the available protocols. Protocol PPoE Description Point-to-Point Protocol over Ethernet. Many DSL modems use PPoE to establish and maintain a connection with a service provider. PPoE provides a means of logging in to the ISPs servers so that they can authenticate you as a customer and provide you access to the Internet. Check with your ISP before blocking this protocol. 157