Before Configuring a PPPoE Server
Planning for a PPPoE access server involves working with the telephone company that provides your connection to its data service network. The telephone company installs its lines, often ATM pipes, at your site, and provides some sort of bridging into your access server. You need to configure the Ethernet interfaces that access the services your company provides, for example, Internet access, as well as the Ethernet interfaces from the telephone company's bridge.
Table 30-7 Planning for a PPPoE Access Server
Information | Action |
|---|---|
Interfaces that are used for lines from data service network | Run the ifconfig -a command to identify interfaces. |
Types of services to provide from the PPPoE server | Ask management, network planners for their requirements and suggestions. |
(Optional) Types of services to provide to the consumers | Ask management, network planners for their requirements and suggestions. |
(Optional) Host names and passwords for remote clients | Ask network planners and other individuals at your site responsible for contract negotiations. The host names and passwords are used for PAP or CHAP authentication, not UNIX login. |
Example--Configuration for a PPPoE Tunnel
This section contains a sample PPPoE tunnel, which is used as an illustration for the tasks in Chapter 34, Setting Up a PPPoE Tunnel (Tasks). Though the illustration shows all participants in the tunnel, you only administer one end, either the client side or server side.
Figure 30-5 Example--PPPoE Tunnel
In the sample, MiddleCo wants to provide its employees with high-speed Internet access. MiddleCo buys a DSL package from Phone East, which, in turn, contracts with service provider Far ISP. Far ISP offers Internet and other IP services to customers who buy DSL from Phone East.
Example--PPPoE Client Configuration
MiddleCo buys a package from Phone East that provides one DSL line for the site. The package includes a dedicated, authenticated connection to the ISP for MiddleCo's PPPoE clients. The system administrator cables the prospective PPPoE clients to a hub. Technicians from Phone East cable the hub to their DSL equipment.
Example--PPPoE Server Configuration
To implement the business arrangement FarISP has with Phone East, the system administrator at FarISP configures the access server dslserve. This server has the following four interfaces:
le0 - Primary network interface, connecting to the local network
hme0 - Interface through which FarISP provides Internet service for its customers
hme1 - Interface contracted by MiddleCo for authenticated PPPoE tunnels
hme2 - Interface contracted by other customers for their PPPoE tunnels
Where to Get More Information About PPPoE
Task | For Instructions |
|---|---|
Set up a PPPoE client | |
Set up a PPPoE access server | |
Get detailed information about PPPoE | "Creating PPPoE Tunnels for DSL Support" and the pppoed(1M), pppoec(1M), and sppptun(1M) man pages |