TP-Link TL-R480T+ manual  L2TP Settings, Server IP

The following items are displayed on this screen:

 L2TP Settings
Connection Type:	Select L2TP/Russian L2TP if your ISP provides an L2TP
	connection. Click <Connect> to dial-up to the Internet and
	obtain the IP address. Click <Disconnect> to disconnect the
	Internet and release the current IP address.
Account Name:	Enter the Account Name provided by your ISP. If you are not
	clear, please consult your ISP.
Password:	Enter the Password provided by your ISP.
Server IP:	Enter the Server IP provided by your ISP.
MTU:	MTU (Maximum Transmission Unit) is the maximum data unit
	transmitted by the physical network. It can be set in the
	range of 576-1460. The default MTU is 1460. You are
	recommended to keep the default value if no other MTU
	value is provided by your ISP.
Active Mode:	You can select the proper Active Mode according to your
	need.
	 Manual: Select this option to manually activate or
	terminate the Internet connection by the <Connect> or
	<Disconnect> button. It is optimum for the dial-up
	connection charged on time.
	 Always-on: Select this option to keep the connection
	always on. The connection can be re-established
	automatically when it is down.
Secondary Connection:	Here allows you to configure the secondary connection.
	Dynamic IP and Static IP connection types are provided.
Connection Type:	Select the secondary connection type. Options include
	Disable, Dynamic IP and Static IP.

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