Cisco ASA Series Cli Configuration Manual page 641

Chapter 1 Configuring OSPF
To configure the software advertisement on one summary route for all redistributed routes included for
a network address and mask, perform the following steps:
Detailed Steps
Command
Step 1
router ospf process_id
Example:
hostname(config)# router ospf 1
Step 2
summary-address ip_address mask
[not-advertise] [tag tag]
Example:
hostname(config)# router ospf 1
hostname(config-rtr)# summary-address
10.1.0.0 255.255.0.0
Configuring Route Summarization Between OSPFv2 Areas
Route summarization is the consolidation of advertised addresses. This feature causes a single summary
route to be advertised to other areas by an area boundary router. In OSPF, an area boundary router
advertises networks in one area into another area. If the network numbers in an area are assigned in a
way so that they are contiguous, you can configure the area boundary router to advertise a summary route
that includes all the individual networks within the area that fall into the specified range.
To define an address range for route summarization, perform the following steps:
Detailed Steps
Command
Step 1
router ospf process_id
Example:
hostname(config)# router ospf 1
Step 2
area area-id range ip-address mask
[advertise | not-advertise]
Example:
hostname(config)# router ospf 1
hostname(config-rtr)# area 17 range
12.1.0.0 255.255.0.0
Purpose
Creates an OSPF routing process and enters router configuration
mode for this OSPF process.
The process_id argument is an internally used identifier for this
routing process and can be any positive integer. This ID does not
have to match the ID on any other device; it is for internal use
only. You can use a maximum of two processes.
Sets the summary address.
In this example, the summary address 10.1.0.0 includes addresses
10.1.1.0, 10.1.2.0, 10.1.3.0, and so on. Only the 10.1.0.0 address
is advertised in an external link-state advertisement.
Purpose
Creates an OSPF routing process and enters router configuration
mode for this OSPF process.
The process_id argument is an internally used identifier for this
routing process. It can be any positive integer. This ID does not
have to match the ID on any other device; it is for internal use
only. You can use a maximum of two processes.
Sets the address range.
In this example, the address range is set between OSPF areas.
Cisco ASA Series CLI Configuration Guide
Customizing OSPFv2
1-9