Fortinet FortiGate FortiGate-100A - Configuring Pppoe or Pppoa on the ADSL Interface

Configuring the ADSL interface Configuring the ADSL interface using the web-based manager
FortiGate-60 series and FortiGate-100A FortiOS 3.0 MR4 Install Guide
01-30004-0266-20070831 61
Configuring PPPoE or PPPoA on the ADSL interface
If you configure the interface to use PPPoE, the FortiGate unit automatically
broadcasts a PPPoE request. You can disable Connect to Server if you are
configuring the FortiGate unit off-line and you do not want the FortiGate unit to
send the PPPoE request.
FortiGate units support many of the PPPoE RFC features (RFC 2516) including
unnumbered IPs, initial discovery timeout and PPPoE Active Discovery Terminate
(PADT).
To configure PPPoE or PPPoA
1 Go to System > Network > Interface.
2 Select Create New or select the Edit icon of an existing interface.
3 In the Addressing mode section, select PPPoE or PPPoA.
Figure 11: ADSL interface PPPoE or PPPoA settings
4 Enter the following information and select Apply.
Override internal DNS Enable Override internal DNS to use the DNS addresses retrieved
from the DHCP server instead of the DNS server IP addresses on
the DNS page. You should also enable Obtain DNS server
address automatically in System > Network > Options.
Connect to server Enable Connect to Server so that the interface automatically
attempts to connect to a DHCP server. Disable this option if you
are configuring the interface offline.
Username Enter the PPPoE or PPPoA account user name that your ISP provides.
Password Enter the PPPoE or PPPoA account password that your ISP provides.
Unnumbered IP Specify the IP address for the interface. If your ISP has assigned you a
block of IP addresses, use one of them. Otherwise, this IP address can
be the same as the IP address of another interface or can be any IP
address.
Initial Disc
Timeout
Initial discovery timeout. The time to wait before retrying to start a
PPPoE discovery. Set Initial Disc to 0 to disable.
Initial PADT
timeout
Initial PPPoE or PPPoA Active Discovery Terminate (PADT) timeout in
seconds. Use this timeout to shut down the PPPoE or PPPoA session
if it is idle for this number of seconds. PADT must be supported by your
ISP. Set initial PADT timeout to 0 to disable.
Authentication Select the authentication method your ISP uses: PAP, CHAP,
MSCHAPv1, MSCHAPv2 or Auto.