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27-3
Cisco ASA 5500 Series Configuration Guide using the CLI
Chapter 27 Configuring EIGRP
Configuring EIGRP
IPv6 Guidelines
Does not support IPv6.
Configuring EIGRP
This section describes how to enable the EIGRP process on your system. After you have enabled EIGRP,
see the following sections to learn how to customize the EIGRP process on your system.
• Enabling EIGRP, page 27-3
• Enabling EIGRP Stub Routing, page 27-3
Enabling EIGRP
You can only enable one EIGRP routing process on the ASA.
To enable EIGRP, perform the following steps:
Detailed Steps
Enabling EIGRP Stub Routing
You can enable, and configure the ASA as an EIGRP stub router. Stub routing decreases memory and
processing requirements on the ASA. As a stub router, the ASA 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
ASA responds to all queries for summaries, connected routes, redistributed static routes, external routes,
and internal routes with the message “inaccessible.” When the ASA 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
Command Purpose
Step 1
router eigrp as-num
Example:
hostname(config)# router eigrp 2
Creates an EIGRP routing process and enters router configuration
mode for this EIGRP process.
The as-num argument is the autonomous system number of the
EIGRP routing process.
Step 2
network ip-addr [mask]
Example:
hostname(config)# router eigrp 2
hostname(config-router)# network 10.0.0.0
255.0.0.0
Configures the interfaces and networks that participate in EIGRP
routing. You can configure one or more network statements with
this command.
Directly connected and static networks that fall within the defined
network are advertised by the ASA. Additionally, only interfaces
with an IP address that fall within the defined network participate
in the EIGRP routing process.
If you have an interface that you do not want to have participate
in EIGRP routing, but that is attached to a network that you want
advertised, see the “Configuring Interfaces for EIGRP” section on
page 27-6.