Router Dynamic
Selecting operating parameters for an OSPF interface
FortiGate Version 3.0 MR4 Administration Guide
01-30004-0203-20070102
An OSPF interface definition contains specific operating parameters for a
FortiGate OSPF-enabled interface. The definition includes the name of the
interface (for example, external or VLAN_1), the IP address assigned to the
interface, the method for authenticating LSA exchanges through the interface,
and timer settings for sending and receiving OSPF Hello and dead-interval
packets.
You can enable OSPF on all FortiGate interfaces whose IP addresses match the
OSPF-enabled network space. For example, define an area of 0.0.0.0 and the
OSPF network is defined as 10.0.0.0/16. Then define vlan1 as 10.0.1.1/24, vlan2
as 10.0.2.1/24 and vlan3 as 10.0.3.1/24. All three VLANs will run OSPF in area
0.0.0.0. To enable all interfaces, you would create OSPF network 0.0.0.0/0 having
an area that matches a specific IP address.
You can configure different OSPF parameters for the same FortiGate interface
when more than one IP address has been assigned to the interface. For example,
the same FortiGate interface could be connected to two neighbors through
different subnets. You could configure an OSPF interface definition containing one
set of Hello and dead-interval parameters for compatibility with one neighbor's
settings, and a second OSPF interface definition for the same interface to ensure
compatibility with the second neighbor's settings.
To select OSPF operating parameters for a FortiGate interface, go to Router >
Dynamic > OSPF, and then under Interfaces, select Create New. To edit the
operating parameters of an OSPF-enabled interface, go to Router > Dynamic >
OSPF and select the Edit icon in the row that corresponds to the OSPF-enabled
interface.
Figure 112
shows the New/Edit OSPF Interface dialog box belonging to a
FortiGate unit that has an interface named "port1". The interface names on your
FortiGate unit may differ.
Figure 112:New/Edit OSPF Interface
Name
Enter a name to identify the OSPF interface definition. For example, the
name could indicate to which OSPF area the interface will be linked.
Interface
Select the name of the FortiGate interface to associate with this OSPF
interface definition (for example, port1, external, or VLAN_1). The
FortiGate unit can have physical, VLAN, virtual IPSec or GRE interfaces
connected to the OSPF-enabled network.
Add
OSPF
201
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