Cisco WRT300N User Manual - Page 20

Wireless-N Broadband Router L2TP Layer 2 Tunneling Protocol (L2TP) is a service that tunnels Point-to-Point Protocol (PPP) across the Internet. It is used mostly in European countries. Check with your ISP for the necessary setup information. Server IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will provide you with the IP address you need to specify here. User Name and Password. Enter the User Name and Password provided by your ISP. Connect on Demand and Max Idle Time. You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as soon as you attempt to access the Internet again. To use Connect on Demand, click the radio button. If you want your Internet connection to remain on at all times, enter 0 in the Max Idle Time field. Otherwise, enter the number of minutes you want to have elapsed before your Internet access disconnects. Keep Alive and Redial Period. This option keeps your Internet access connected indefinitely, even when it sits idle. If you select this option, the Router will periodically check your Internet connection. If the connection is down, then the Router will automatically re-establish the connection. To use this option, click the radio button next to Keep Alive. The default Redial Period is 30 seconds. Click the Save Settings button. Then click the Status tab, and click the Connect button. Optional Settings Some of these settings may be required by your ISP. Verify with your ISP before making any changes. Host Name and Domain Name. Some ISPs require these names as identification. You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name. In most cases, leaving these fields blank will work. MTU. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for network transmission. To manually set a value, select Manual and enter the value desired in the Size field. You should leave this value in the 1200 to 1500 range. Most DSL users should use the value 1492. The default is Auto, which allows the Router to select the best MTU for your Internet connection. Figure 5-7: L2TP packet: a unit of data sent over a network. Chapter 5: Configuring the Wireless-N Broadband Router 14 The Setup Tab - Basic Setup