Cisco ASA 5505 Configuration Manual page 434

Customizing EIGRP
The Filter Rules pane appears and displays the route filtering rules configured for the EIGRP routing
process. Filter rules let you control which routes are accepted or advertised by the EIGRP routing
process.
Each row of the Filter Rule table describes a filter rule for a specific interface or routing protocol. For
example, a filter rule with a direction of "in" on the outside interface would apply filtering to any EIGRP
updates received on the outside interface. A filter rule with a direction of "out" with OSPF 10 specified
as the routing protocol would apply the filter rules to routes redistributed into the EIGRP routing process
in outbound EIGRP updates.
Click Add to add a filter rule. If you are editing an already existing filter rule, skip to Step 6.
Step 5
The Add Filter Rules dialog box appears.
To edit a filter rule, choose the filter rule in the table and click Edit.
Step 6
The Edit Filter Rules dialog appears. You can also double-click a filter rule to edit the rule. To remove
a filter rule, choose the filter rule in the table and click Delete.
Choose the autonomous system number (AS) from the drop-down list of the EIGRP routing process to
Step 7
which the entry applies.
Choose the direction from the drop-down list to select the direction of the filter routes.
Step 8
Choose "in" for rules that filter routes from incoming EIGRP routing updates. Choose "out" to filter
routes from EIGRP routing updates sent by the adaptive security appliance.
If you choose "out", the Routing process field becomes active. Choose the type of route being filtered.
You can filter routes redistributed from static, connected, RIP, and OSPF routing processes. Filters that
specify a routing process filter those routes from updates sent on all interfaces.
Enter the OSPF process ID in the ID field.
Step 9
Step 10 Click the Interface radio button and choose the interface to which the filter applies.
Step 11 Click Add or Edit to define an access list for the filter rule.
Choosing Edit opens the Network Rule dialog box for the selected network rule.
The Network Rule dialog box appears.
In the Action drop-down list, choose Permit to allow the specified network to be advertised; choose
Step 12
Deny to prevent the specified network from being advertised.
In the IP Address field, type IP address of the network being permitted or denied. To permit or deny all
Step 13
addresses, use the IP address 0.0.0.0 with a network mask of 0.0.0.0.
Step 14 From the Netmask drop-down list, choose the network mask applied to the network IP address. You can
type a network mask into this field or select one of the common masks from the list.
Step 15 Click OK.
Cisco ASA 5500 Series Configuration Guide using ASDM
23-14
Chapter 23 Configuring EIGRP
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