FortiGate Administration Guide - FirewallShop.com

OSPF
Router Dynamic
Type
Authentication
Select an area type to classify the characteristics of the network that will
be assigned to the area:
• Select Regular if the area contains more than one router, each
having at least one OSPF-enabled interface to the area.
• Select NSSA if you want routes to external non-OSPF domains made
known to OSPF AS and you want the area to be treated like a stub
area by the rest of the AS.
• Select STUB if the routers in the area must send packets to an area
border router in order to reach the backbone and you do not want
routes to non-OSPF domains to be advertised to the routers in the
area.
Select the method for authenticating OSPF packets sent and received
through all interfaces in the area:
• Select None to disable authentication.
• Select Text to enable text-based password authentication. to
authenticate LSA exchanges using a plain-text password. The
password is sent in clear text over the network.
• Select MD5 to enable MD5 authentication using an MD5 hash.
If required, you can override this setting for one or more of the interfaces
in the area (see “Selecting operating parameters for an OSPF interface”
on page 255).
Note: To assign a network to the area, see “Specifying OSPF networks” on page 254.
Specifying OSPF networks
OSPF areas group a number of contiguous networks together. When you assign
an area ID to a network address space, the attributes of the area are associated
with the network.
To assign an OSPF area ID to a network, go to Router > Dynamic > OSPF, and
then under Networks, select Create New. To change the OSPF area ID assigned
to a network, go to Router > Dynamic > OSPF and select the Edit icon in the row
that corresponds to the network.
Figure 158:New/Edit OSPF Network
IP/Netmask
Area
Enter the IP address and network mask of the local network that you want
to assign to an OSPF area.
Select an area ID for the network. The attributes of the area must match
the characteristics and topology of the specified network. You must define
the area before you can select the area ID. See “Defining OSPF areas” on
page 253.
FortiGate Version 3.0 MR5 Administration Guide
254 01-30005-0203-20070830