Scenario: Connecting your system to a PPPoE access concentrator

Situation

Your business requires a faster Internet connection, so you are interested in a Digital Subscriber Line (DSL) service with a local ISP. After an initial investigation, you find that your ISP uses PPPoE to connect its clients. You need to use this PPPoE connection to provide high-bandwidth Internet connections through your system.

Solution

You can support a PPPoE connection to your ISP through your system. The system uses a new PPPoE virtual line type that is bound to a physical Ethernet line configured to use a type 2743, 2760, 2838, 2849, 287F, 5700, 5701, 5706, 5707, 573A, 5767, or 576A Ethernet adapter. This virtual line supports PPP session protocols over an Ethernet local area network (LAN), which is connected to a DSL modem that provides the gateway to the remote ISP. This gateway allows LAN-connected users to have high-speed Internet access using the PPPoE connection. After the connection between the system and the ISP has started, individual users on the LAN can access the ISP over PPPoE, using the IP address allocated to the system. To provide additional security, filter rules can be applied to the PPPoE virtual line to restrict certain inbound Internet traffic.

Sample configuration

To set up a sample PPP configuration from IBM® Navigator for i, follow these steps:

1. Configure the connection device for use with your ISP.
2. Configure an originator connection profile on your system.
   Ensure that you enter the following information:

   • Protocol type: PPP
   • Connection type: PPP over Ethernet
   • Operating mode: Initiator
   • Link configuration: Single line
3. On the General page of the New Point-to-Point Profile Properties, enter a name and description for the originator profile. This name refers to both the connection profile and the virtual PPPoE line.
4. Click Connection to open the Connection page. Choose the PPPoE virtual line name that corresponds to the name for this connection profile. After you select the line, IBM Navigator for i displays the line properties dialog.
   1. On the General page, enter a meaningful description for the PPPoE virtual line.
   2. Click Link to open the Link page. From the Physical Line Name select list, select the Ethernet line that this connection will use, and click Go. Alternately, if you need to define a new Ethernet line, type the line name and click Open. IBM Navigator for i displays the New Ethernet line properties dialog.
      Note: PPPoE requires a type 2743, 2760, 2838, 2849, 287F, 5700, 5701, 5706, 5707, 573A, 5767, or 576A Ethernet adapter.
      1. On the General page, enter a meaningful description for the Ethernet Line, and verify that the line definition is using the required hardware resources.
      2. Click Link to open the Link page. Enter the properties for the physical Ethernet line. Refer to the documentation for your Ethernet adapter and the online help for more information.
      3. Click OK to return to the PPPoE virtual line properties page.
   3. Click Limits to define properties for LCP authentication, or click OK to return to New Point-to-Point Profile Connection page.
   4. When you return to the Connection page, specify the PPPoE server addressing based on information provided by your ISP.
5. If your ISP requires the system to authenticate itself or if you want the system to authenticate the remote system, click Authentication to open the Authentication page and enter the requested information.
6. Click TCP/IP IPv4 Settings to open the TCP/IP IPv4 Settings page, and specify the IP address handling parameters for this connection profile. The setting to be used should be provided by your ISP. To allow LAN attached users to connect to the ISP using the IP addresses allocated to the system, select Hide addresses (Full masquerading).
7. Click DNS to open the DNS page, enter the IP address of the DNS server provided by the ISP.
8. Click OK to complete the profile.