SonicWALL 3 manual Configuring NAT with PPPoE Client, Configuring NAT with L2TP Client

Configuring the WAN Interface

Configuring NAT with PPPoE Client

The SonicWALL security appliance can use Point-to-Point Protocol over Ethernet to connect to the Internet. If your ISP requires the installation of desktop software as well as a user name and password to access the Internet, enable NAT with PPPoE Client.

1Select NAT with PPPoE Client from the drop-down menu in the Mode column of the Interfaces table.

2 Click the edit	icon in the WAN entry of the Interfaces table. The WAN Properties window is
displayed.

3Select Obtain an IP Address Automatically if you do not have a public IP address from your ISP. If you have an IP address from your ISP, select Use the following Address, and enter the IP address in the IP address field.

4Click the PPPoE tab.

5Enter your user name and password provided by your ISP in the User Name and User Password fields.

6Select Inactivity Disconnect (minutes) to end the connection after a specified time of inactivity. 10 minutes is the default value.

7Click OK.

Configuring NAT with L2TP Client

If your Internet connection is provided through a L2TP server, you must configure the SonicWALL security appliance to use NAT with L2TP Client. L2TP (Layer 2 Tunneling Protocol) provides interoperability between VPN vendors that protocols such as Point-to-Point Tunneling Protocol (PPTP) and Layer 2 Forwarding (L2F) do not have.

1Log into the SonicWALL security appliance, and click Network.

2Select NAT with L2TP Client from the Network Addressing Mode menu.

3 Click the edit	icon in the WAN entry of the Interfaces table. The WAN Properties window is
displayed.

4Obtain an IP Address Automatically is selected by default. Enter your host name in the Host Name field. Click Renew to obtain new IP addressing information. Click Release to discard IP addressing information. Click Refresh to reload the IP addressing information.

5If you have IP addressing information, select Use the following IP Address.

6Enter your public IP address in the SonicWALL WAN IP (NAT Public) Address field.

7Enter the WAN Subnet information in the WAN Subnet Mask field.

8Enter the WAN Gateway IP address in the WAN Gateway (Router) Address field.

9Click on the L2TP tab.

10Enter your user name in the User Name field.

11Enter your password in the User Password field.

12Enter the IP address of the L2TP Server in the L2TP Server IP Address field.

13Enter the host name of the L2TP Server in the L2TP Host Name field.

14Select Inactivity Disconnect (minutes) to end the connection after a specified time of inactivity.

15Once a connection is established, the SonicWALL security appliance WAN IP address, the Gateway address and the DNS Server IP addresses are displayed in the Settings Acquired via L2TP section.

16Click OK.

SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE 67