11-4
Cisco ASDM User Guide
OL-16647-01
Chapter 11 Configuring Dynamic And Static Routing
Dynamic Routing
• RFC 1583 Compatible—Check this check box to calculate summary route costs per RFC 1583.
Uncheck this check box to calculate summary route costs per RFC 2328. To minimize the chance of
routing loops, all OSPF devices in an OSPF routing domain should have RFC compatibility set
identically.This setting is selected by default.
• Adjacency Changes—Contains settings that define the adjacency changes that cause system log
messages to be sent.
–
Log Adjacency Changes—Check this check box to cause the security appliance to send a system
log message whenever an OSPF neighbor goes up or down. This setting is selected by default.
–
Log Adjacency Changes Detail—Check this check box to cause the security appliance to send
a system log message whenever any state change occurs, not just when a neighbor goes up or
down. This setting is unchecked by default.
• Administrative Route Distances—Contains the settings for the administrative distances of routes
based on the route type.
–
Inter Area—Sets the administrative distance for all routes from one area to another. Valid values
range from 1 to 255. The default value is 100.
–
Intra Area—Sets the administrative distance for all routes within an area. Valid values range
from 1 to 255. The default value is 100.
–
External—Sets the administrative distance for all routes from other routing domains that are
learned through redistribution. Valid values range from 1 to 255. The default value is 100.
• Timers—Contains the settings used to configure LSA pacing and SPF calculation timers.
–
SPF Delay Time—Specifies the time between when OSPF receives a topology change and when
the SPF calculation starts. Valid values range from 0 to 65535. The default value is 5.
–
SPF Hold Time—Specifies the hold time between consecutive SPF calculations.Valid values
range from 1 to 65534. The default value is 10.
–
LSA Group Pacing—Specifies the interval at which LSAs are collected into a group and
refreshed, checksummed, or aged. Valid values range from 10 to 1800. The default value is 240.
• Default Information Originate—Contains the settings used by an ASBR to generate a default
external route into an OSPF routing domain.
–
Enable Default Information Originate—Check this check box to enable the generation of the
default route into the OSPF routing domain.
–
Always advertise the default route—Check this check box to always advertise the default route.
This option is unchecked by default.
–
Metric Value—Specifies the OSPF default metric. Valid values range from 0 to 16777214. The
default value is 1.
–
Metric Type—Specifies the external link type associated with the default route advertised into
the OSPF routing domain. Valid values are 1 or 2, indicating a Type 1 or a Type 2 external route.
The default value is 2.
–
Route Map—(Optional) The name of the route map to apply. The routing process generates the
default route if the route map is satisfied.
Modes
The following table shows the modes in which this feature is available: