Fortinet MR1 - Manual (Page 541)

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Dead Interval - Enter the OSPF dead interval for the specified interface in seconds. This specifies how
long a router will wait to see a neighbor router's Hello packets before declaring that the router is down.
This parameter must be the same for all routers attached to a network. This value should a multiple of
the Hello Interval (e.g. 4). Valid values range from 1 to 2147483647. The default is 40.
Iftransit Delay Interval - Enter the OSPF Transit Delay for the specified interface. This specifies the
estimated number of seconds it takes to transmit a link state update packet over the selected interface.
Valid values range from 1 to 3600 seconds (1 hour). The default value is 1 second.
Retransmit Interval - Enter the OSPF retransmit interval for the specified interface. This is the number
of seconds between link-state advertisements for adjacencies belonging to this router interface. This
value is also used when retransmitting database descriptions and link-state request packets. Valid
values range from 1 to 3600 seconds (1 hour). The default is 5 seconds.
Authentication Type - You may select an authentication type other than none by clicking on the
'Configure Authentication' button. You will then see a new screen, where you can select the
authentication type from the pulldown menu. The choices are:
ƒ None - This is the initial interface state. If you select this option from the pulldown menu on the
second screen you will be returned to the first screen.
ƒ Simple - If you select 'Simple' you will be prompted to enter an authentication key. This key will be
included, in the clear, in the OSPF header of all packets sent on the network. All routers on the
network must be configured with the same key.
ƒ Encrypt - If you select 'Encrypt' you will be prompted to enter both an authentication key and an
authentication ID. Encryption uses the MD5 Message-Digest algorithm. All routers on the network
must be configured with the same key and ID.
Authentication Key - Enter the OSPF Authentication Key for the specified interface. If you do not
choose to use authentication you will not be prompted to enter a key. If you choose 'simple'
authentication you cannot use a key of more than 8 octets. If you choose 'encrypt' the key may be up to
16 octets long. The key value will only be displayed if you are logged on with Read/Write privileges,
otherwise it will be displayed as asterisks.
Authentication ID - Enter the ID to be used for authentication. You will only be prompted to enter an ID
when you select 'Encrypt' as the authentication type. The ID is a number between 0 ad 255, inclusive.
Non-Configurable Data
Down - This is the initial interface state. In this state, the lower-level protocols have indicated that the
interface is unusable. In this state, interface parameters will be set to their initial values. All interface
timers will be disabled, and there will be no adjacencies associated with the interface.
Waiting - The router is trying to determine the identity of the (Backup) Designated Router by monitoring
received Hello Packets. The router is not allowed to elect a Backup Designated Router or a Designated
Router until it transitions out of Waiting state. This prevents unnecessary changes of (Backup)
Designated Router.
Point-to-Point - The interface is operational, and is connected to the virtual link. On entering this state
the router attempts to form an adjacency with the neighboring router. Hello Packets are sent to the
neighbor every HelloInterval seconds.
Designated Router - This router is itself the Designated Router on the attached network. Adjacencies
are established to all other routers attached to the network. The router must also originate a