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Configuring EIGRP
EIGRP Configuration Examples
IPC-273
Cisco IOS IP Configuration Guide
To display various routing statistics, use the following commands in EXEC mode, as needed:
To enable EIGRP Stub Routing packet debugging, use the following command in privileged EXEC
mode:
EIGRP Configuration Examples
This section contains the following examples:
• Route Summarization Example
• Route Authentication Example
• Stub Routing Example
Route Summarization Example
The following example configures route summarization on the interface and also configures the
automatic summary feature. This configuration causes EIGRP to summarize network 10.0.0.0 out
Ethernet interface 0 only. In addition, this example disables automatic summarization.
interface Ethernet 0
ip summary-address eigrp 1 10.0.0.0 255.0.0.0
!
router eigrp 1
network 172.16.0.0
no auto-summary
Note You should not use the ip summary-address eigrp summarization command to generate
the default route (0.0.0.0) from an interface. This causes the creation of an EIGRP summary
default route to the null 0 interface with an administrative distance of 5. The low
administrative distance of this default route can cause this route to displace default routes
learned from other neighbors from the routing table. If the default route learned from the
neighbors is displaced by the summary default route, or if the summary route is the only
default route present, all traffic destined for the default route will not leave the router,
Command Purpose
Router# show ip eigrp interfaces [interface-type |
interface-number] [as-number]
Displays information about interfaces configured for
EIGRP.
Router# show ip eigrp neighbors [interface-type | as-number
| static]
Displays the EIGRP discovered neighbors.
Router# show ip eigrp topology [as-number | [[ip-address]
mask]]
Displays the EIGRP topology table for a given
process.
Router# show ip eigrp traffic [as-number]
Displays the number of packets sent and received for
all or a specified EIGRP process.
Command Purpose
Router# debug eigrp packet stub
Displays debug information about the stub status
of peer routers.