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54-17
User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 54 Configuring Routing Policies on Firewall Devices
Configuring OSPF
Summary Address Tab
Use the Summary Address tab to configure summary addresses for each OSPF routing process.
Routes learned from other routing protocols can be summarized. The metric used to advertise the
summary is the smallest metric of all the more specific routes. Summary routes help reduce the size of
the routing table.
Using summary routes for OSPF causes an OSPF ASBR to advertise one external route as an aggregate
for all redistributed routes that are covered by the address. Only routes from other routing protocols that
are being redistributed into OSPF can be summarized.
Navigation Path
You can access the Summary Address tab from the OSPF page. For more information about the OSPF
page, see Configuring OSPF, page 54-2.
Related Topics
• Table 54-17 on page 54-18
Field Reference
Traffic Direction Select the traffic direction to filter. Choose “Inbound” to filter LSAs
coming into an OSPF area or “Outbound” to filter LSAs going out of
an OSPF area.
Sequence Number Enter a sequence number for the filter. Valid values range from 1 to
4294967294. When multiple filters apply to an LSA, the filter with the
lowest sequence number is used.
Action Select “Permit” to allow the LSA traffic or “Deny” to block the LSA
traffic.
Lower Range Specify the minimum prefix length to be matched. The value of this
setting must be greater than the length of the network mask entered in
the Filtered Network field and less than or equal to the value, if present,
entered in the Upper Range field.
Upper Range Enter the maximum prefix length to be matched. The value of this
setting must be greater than or equal to the value, if present, entered in
the Lower Range field, or, if the Lower Range field is left blank, greater
than the length of the network mask length entered in the Filtered
Network field.
Table 54-15 Add/Edit Filtering Dialog Box (Continued)
Element Description
Table 54-16 Summary Address Tab
Element Description
OSPF Process The OSPF process associated with the summary address.
Network The IP address and network mask of the summary address.