User manual

4.2.1 PPP over ATM (PPPoA) and PPP over Ethernet (PPPoE)

STEP 4: Select PPP over ATM (PPPoA) or PPP over Ethernet (PPPoE) and click Next.

The following screen appears. Enter the Username and Password and

select the connection options you wish. Review the descriptions below for

more details. Click Next to continue.

PPP Username / PPP Password

The PPP Username and the PPP password requirement are dependent on the

particular requirements of the service provider. A maximum of 256 characters is

allowed for the PPP user name and a maximum of 32 characters for PPP password.

PPPoE Service Name

For PPPoE service, PADI requests contain a service label. Some PPPoE servers (or

BRAS) of ISP check this service label to make a connection.

Dial on Demand

The device can be configured to disconnect if there is no activity for a period of time

by selecting this check box. When the checkbox is ticked, you must enter the

inactivity timeout period. The timeout period ranges from 1 to 4320 minutes.

PPP IP Extension

The PPP IP Extension is a special feature deployed by some service providers.

Unless your service provider specifically requires this setup, do not select it.

PPP IP Extension does the following:

• Allows only one PC on the LAN

• The public IP address assigned by the remote side using the PPP/IPCP

protocol is actually not used on the WAN PPP interface. Instead, it is

forwarded to the PC LAN interface through DHCP. Only one PC on the

LAN can be connected to the remote, since the DHCP server within the

device has only a single IP address to assign to a LAN device.

• NAT and firewall are disabled when this option is selected.