Selecting Operating Parameters For An Ospf Interface - Fortinet FortiGate Series Administration Manual

Router Dynamic

Selecting operating parameters for an OSPF interface

FortiGate Version 4.0 MR1 Administration Guide
01-410-89802-20090903
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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 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 can run OSPF in area 0.0.0.0. To enable all interfaces, you
would create an OSPF network 0.0.0.0/0
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 194 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 194: 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
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