Eigrp Configuration Examples - Cisco Catalyst 4500 Series Software Configuration Manual

Configuring EIGRP Stub Routing
To display various routing statistics, use the following commands:
Command
Switch# show ip eigrp interfaces [interface] [as-number]
Switch# show ip eigrp neighbors [type|number|static]
Switch# show ip eigrp topology [autonomous-system-number |
[[ip-address] mask]]
Switch# show ip eigrp traffic [autonomous-system-number]

EIGRP Configuration Examples

This section contains the following examples:
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Route Summarization Example
The following example disables autosummarization and causes EIGRP to summarize network 10.0.0.0
out Ethernet interface 0 only:
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 because it creates 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 does not leave the router.
Instead, this traffic is sent to the null 0 interface where it is dropped.
The recommended way to send only the default route out a given interface is to use a distribute-list
command. You can configure this command to filter all outbound route advertisements sent out the
interface with the exception of the default (0.0.0.0).
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
35-20
Route Summarization Example
Route Authentication Example
Stub Routing Example
Chapter 35
Purpose
Displays information about interfaces configured for
EIGRP.
Displays the EIGRP discovered neighbors.
Displays the EIGRP topology table for a given
process.
Displays the number of packets sent and received for
all or a specified EIGRP process.
Configuring Layer 3 Interfaces