Cisco ASA Series Cli Configuration Manual page 637

Chapter 1 Configuring OSPF
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Additional Guidelines
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Configuring OSPFv2
This section describes how to enable an OSPFv2 process on the ASA.
After you enable OSPFv2, you need to define a route map. For more information, see the
Route Map" section on page
"Configuring Static and Default Routes" section on page
After you have defined a route map for the OSPFv2 process, you can customize it for your particular
needs, To learn how to customize the OSPFv2 process on the ASA, see the
section on page
To enable OSPFv2, you need to create an OSPFv2 routing process, specify the range of IP addresses
associated with the routing process, then assign area IDs associated with that range of IP addresses.
You can enable up to two OSPFv2 process instances. Each OSPFv2 process has its own associated areas
and networks.
When a unit enters a cluster as a slave, then we recommend that you specify the nocheck option for
the cluster interface mode command to avoid any router ID compatibility check failures. The slave
unit still inherits the router configuration from the master unit.
When a mastership role change occurs in the cluster, the following behavior occurs:
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In spanned interface mode, the router process is active only on the master unit and is in a
suspended state on the slave units. Each cluster unit has the same router ID because the
configuration has been synchronized from the master unit. As a result, a neighboring router does
not notice any change in the router ID of the cluster during a role change.
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In individual interface mode, the router process is active on all the individual cluster units. Each
cluster unit chooses its own distinct router ID from the configured cluster pool. A mastership
role change in the cluster does not change the routing topology in any way.
OSPFv2 and OSPFv3 support multiple instances on an interface.
OSPFv3 supports encryption through ESP headers in a non-clustered environment.
OSPFv3 supports Non-Payload Encryption.
1-4. Then you generate a default route. For more information, see the
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"Customizing OSPFv2"
Cisco ASA Series CLI Configuration Guide
Configuring OSPFv2
"Defining a
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