Cisco ASA Series Cli Configuration Manual page 696

Customizing EIGRP
Command
Step 2
hello-interval eigrp as-num seconds
Example:
hostname(config)# hello-interval eigrp 2
60
Step 3
hold-time eigrp as-num seconds
Example:
hostname(config)# hold-time eigrp 2 60
Disabling Automatic Route Summarization
Automatic route summarization is enabled by default. The EIGRP routing process summarizes on
network number boundaries. This can cause routing problems if you have noncontiguous networks.
For example, if you have a router with the networks 192.168.1.0, 192.168.2.0, and 192.168.3.0
connected to it, and those networks all participate in EIGRP, the EIGRP routing process creates the
summary address 192.168.0.0 for those routes. If an additional router is added to the network with the
networks 192.168.10.0 and 192.168.11.0, and those networks participate in EIGRP, they will also be
summarized as 192.168.0.0. To prevent the possibility of traffic being routed to the wrong location, you
should disable automatic route summarization on the routers creating the conflicting summary
addresses.
To disable automatic route summarization, perform the following steps:
Detailed Steps
Command
Step 1
router eigrp as-num
Example:
hostname(config)# router eigrp 2
Step 2
no auto-summary
Example:
hostname(config-router)# no auto-summary
Configuring Default Information in EIGRP
You can control the sending and receiving of default route information in EIGRP updates. By default,
default routes are sent and accepted. Configuring the ASA to disallow default information to be received
causes the candidate default route bit to be blocked on received routes. Configuring the ASA to disallow
default information to be sent disables the setting of the default route bit in advertised routes.
To configure default routing information, perform the following steps:
Cisco ASA Series CLI Configuration Guide
1-16
Purpose
Changes the hello interval.
Changes the hold time.
Purpose
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.
You cannot configure this value. Automatic summary addresses
have an administrative distance of 5.
Chapter 1 Configuring EIGRP