Cisco ASA 5505 - Manual (Page 514)

27-6
Cisco ASA 5500 Series Configuration Guide using the CLI
Chapter 27 Configuring EIGRP
Customizing EIGRP
Configuring Interfaces for EIGRP
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, you can configure a network command that includes the network
to which the interface is attached, and use the passive-interface command to prevent that interface from
sending or receiving EIGRP updates.
To configure interfaces for EIGRP, perform the following steps:
Detailed Steps
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 hostname(config-router)# 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
“Defining a Network for an EIGRP Routing
Process” section on page 27-5 .
Step 3 (Optional) Do one of the following to customize an interface to participate in EIGRP routing:
no default-information {in | out | WORD}
Example:
hostname(config)# router eigrp 2
hostname(config-router)# network 10.0.0.0
255.0.0.0
hostname(config-router)# no
default-information {in | out | WORD}
Allows you to control the sending or receiving of candidate
default route information.
Entering the no default-information in command causes the
candidate default route bit to be blocked on received routes.
Entering the no default-information out command disables the
setting of the default route bit in advertised routes.
See the “Configuring Default Information in EIGRP” section on
page 27-15 for more information on this particular option.
authentication mode eigrp as-num md5
Example:
hostname(config)# authentication mode
eigrp 2 md5
Enables MD5 authentication of EIGRP packets.
The as-num argument is the autonomous system number of the
EIGRP routing process configured on the ASA. If EIGRP is not
enabled or if you enter the wrong number, the ASA returns the
following error message:
% Asystem(100) specified does not exist
See the “Enabling EIGRP Authentication on an Interface” section
on page 27-9 for more information on this particular option.