Fortinet FortiGate FortiGate-100A - Configuring DHCP on the ADSL Interface

FortiGate-60 series and FortiGate-100A FortiOS 3.0 MR4 Install Guide
60 01-30004-0266-20070831
Configuring the ADSL interface using the web-based manager Configuring the ADSL interface
Configure other interface options as required. For more information see the
FortiGate Administration Guide.
Configuring DHCP on the ADSL interface
If you configure an interface to use DHCP, the FortiGate unit automatically
broadcasts a DHCP request. The interface is configured with the IP address and
optionally DNS server addresses and default gateway address that the DHCP
server provides.
To configure DHCP
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 DHCP.
Figure 10: ADSL interface DHCP settings
4 Complete the following and select Apply.
IPOA IP over ATM. Enter the IP address and netmask that your ISP provides.
EOA Ethernet over ATM, also known as Bridged mode. Enter the IP address
and netmask that your ISP provides.
DHCP See
“Configuring DHCP on the ADSL interface” on page 60.
PPPoE See “Configuring PPPoE or PPPoA on the ADSL interface” on
page 61.
PPPoA See “Configuring PPPoE or PPPoA on the ADSL interface” on
page 61.
Connect to
Server
Enable Connect to Server so that the interface automatically attempts to
connect. Disable this option if you are configuring the interface off-line.
Virtual Circuit
Identification
Enter the VPI and VCI values your ISP provides.
MUX Type Select the MUX type: LLC Encap or VC Encap.
Your ISP must provide this information.
Distance Enter the administrative distance for the default gateway retrieved
from the DHCP server. The administrative distance, an integer
from 1-255, specifies the relative priority of a route when there are
multiple routes to the same destination. A lower administrative
distance indicates a more preferred route. The default distance for
the default gateway is 1.
Retrieve default
gateway from server
Enable Retrieve default gateway from server to retrieve a default
gateway IP address from the DHCP server. The default gateway is
added to the static routing table.