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User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 54 Configuring Routing Policies on Firewall Devices
Configuring OSPF
Field Reference
Table 54-18 Interface Tab
Element Description
Interface The name of the interface to which the configuration applies.
Authentication The type of OSPF authentication enabled on the interface. The
authentication type can be one of the following values:
• None—OSPF authentication is disabled.
• Password—Clear text password authentication is enabled.
• MD5—MD5 authentication is enabled.
• Area—The authentication type specified for the area is enabled on
the interface. Area authentication is the default value for interfaces.
However, area authentication is disabled by default. So, unless you
previously specified an area authentication type, interfaces
showing Area authentication have authentication disabled.
Point-to-Point Displays “true” if the interface is set to non-broadcast (point-to-point).
Displays “false” if the interface is set to broadcast.
Cost The cost of sending a packet through the interface.
Priority The OSPF priority assigned to the interface.
MTU Ignore Displays “false” if MTU mismatch detection is enabled. Displays
“true” if the MTU mismatch detection is disabled.
Database Filter Displays “true” if outgoing LSAs are filtered during synchronization
and flooding. Displays “false” if filtering is not enabled.
Hello Interval The interval, in seconds, between hello packets sent on an interface.
The smaller the hello interval, the faster topological changes are
detected but the more traffic is sent on the interface. This value must be
the same for all routers and access servers on a specific interface. Valid
values range from 1 to 65535 seconds. The default value is 10 seconds.
Transmit Delay The estimated time, in seconds, required to send an LSA packet on the
interface. LSAs in the update packet have their ages increased by the
amount specified by this field before transmission. If the delay is not
added before transmission over a link, the time in which the LSA
propagates over the link is not considered. The value assigned should
take into account the transmission and propagation delays for the
interface. This setting has more significance on very low-speed links.
Valid values range from 1 to 65535 seconds. The default value is 1
second.
Retransmit Interval The time, in seconds, between LSA retransmissions for adjacencies
belonging to the interface. When a router sends an LSA to its neighbor,
it keeps the LSA until it receives the acknowledgement message. If the
router receives no acknowledgement, it resends the LSA. Be
conservative when setting this value, or needless retransmission can
result. The value should be larger for serial lines and virtual links. Valid
values range from 1 to 65535 seconds. The default value is 5 seconds.