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50 01-28007-0068-20041203 Fortinet Inc.
Interface settings System network
The VLAN ID can be any number between 1 and 4096 and must match the VLAN ID
added by the IEEE 802.1Q-compliant router or switch connected to the VLAN
subinterface.
For more information on VLANs, see “VLAN overview” on page 63.
Virtual Domain
Select a virtual domain to add the interface or VLAN subinterface to this virtual
domain. Virtual domain is only available if you have added a virtual domain.
For more information on virtual domains, see “System virtual domain” on page 131.
Addressing mode
Select Manual, DHCP, or PPPoE to set the addressing mode for this interface.
Manual
Select Manual and enter an IP address and netmask for the interface. The IP address
of the interface must be on the same subnet as the network the interface is connecting
to.
Two interfaces cannot have the same IP address and cannot have IP addresses on
the same subnet.
DHCP
If you configure the interface to use DHCP, the FortiGate unit automatically
broadcasts a DHCP request. You can disable Connect to server if you are configuring
the FortiGate unit offline and you do not want the FortiGate unit to send the DHCP
request.
Note: Where you can enter both an IP address and a netmask in the same field, you can use
the short form of the netmask. For example, 192.168.1.100/255.255.255.0 can also be entered
as 192.168.1.100/24.
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.
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 > DNS. See “DNS” on page 61.
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.
Status Displays DHCP status messages as the FortiGate unit connects to the
DHCP server and gets addressing information. Select Status to refresh
the addressing mode status message.