Enabling And Configuring Eigrp Stub Routing - Cisco 7604 Configuration Manual
Catalyst 6500 series switch and cisco 7600 series router firewall services module configuration guide using the cli
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Configuring EIGRP
hostname(config-router)# passive-interface {default | if-name}
Using the default keyword disables EIGRP routing updates on all interfaces. Specifying an interface
name, as defined by the nameif command, disables EIGRP routing updates on the specified interface.
You can have multiple passive-interface commands in your EIGRP router configuration.
Step 4
(Optional) To control the sending or receiving of candidate default route information, enter the following
command:
hostname(config-router)# no default-information {in | out}
Configuring no default-information in causes the candidate default route bit to be blocked on received
routes. Configuring no default-information out disables the setting of the default route bit in advertised
routes.
(Optional) To filter networks sent in EIGRP routing updates, perform the following steps:
Step 5
a.
b.
(Optional) To filter networks received in EIGRP routing updates, perform the following steps:
Step 6
a.
b.
Enabling and Configuring EIGRP Stub Routing
You can configure the FWSM as an EIGRP stub router. Stub routing decreases memory and processing
requirements on the FWSM. As a stub router, the FWSM does not need to maintain a complete EIGRP
routing table because it forwards all nonlocal traffic to a distribution router. Generally, the distribution
router need not send anything more than a default route to the stub router.
Only specified routes are propagated from the stub router to the distribution router. As a stub router, the
FWSM responds to all queries for summaries, connected routes, redistributed static routes, external
routes, and internal routes with the message "inaccessible." When the FWSM is configured as a stub, it
sends a special peer information packet to all neighboring routers to report its status as a stub router. Any
neighbor that receives a packet informing it of the stub status will not query the stub router for any
routes, and a router that has a stub peer will not query that peer. The stub router depends on the
distribution router to send the proper updates to all peers.
To enable and configure and EIGRP stub routing process, perform the following steps:
Create the EIGRP routing process and enter router configuration mode for that process by entering the
Step 1
following command:
hostname(config)# router eigrp as-num
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
8-24
Create a standard access list that defines the routes you want to advertise.
Enter the following command to apply the filter. You can specify an interface to apply the filter to
only those updates sent by that interface.
hostname(config-router): distribute-list acl out [interface if_name]
You can enter multiple distribute-list commands in your EIGRP router configuration.
Create a standard access list that defines the routes you want to filter from received updates.
Enter the following command to apply the filter. You can specify an interface to apply the filter to
only those updates received by that interface.
hostname(config-router): distribute-list acl in [interface if_name]
You can enter multiple distribute-list commands in your EIGRP router configuration.
Chapter 8
Configuring IP Routing and DHCP Services
OL-20748-01
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Troubleshooting
