Configure Eigrp Route Authentication - Cisco WS-C3550-12G Software Configuration Manual

Configuring EIGRP
Command
Step 5 ip hello-interval eigrp autonomous-system-number
seconds
Step 6 ip hold-time eigrp autonomous-system-number
seconds
Step 7
no ip split-horizon eigrp autonomous-system-number (Optional) Disable split horizon to allow route information
Step 8
end
Step 9
show ip eigrp interface
Step 10
copy running-config startup-config
Use the no forms of these commands to disable the feature or return the setting to the default value.
This is an example of output from the show ip eigrp interface privileged EXEC command:
Switch# show ip eigrp interface
IP-EIGRP interfaces for process 1
Interface
Vl1

Configure EIGRP Route Authentication

EIGRP route authentication provides MD5 authentication of routing updates from the EIGRP routing
protocol to prevent the introduction of unauthorized or false routing messages from unapproved sources.
Beginning in privileged EXEC mode, follow these steps to enable authentication:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3 ip authentication mode eigrp autonomous-system md5
Step 4
ip authentication key-chain eigrp autonomous-system
key-chain
Step 5
exit
Step 6
key chain name-of-chain
Catalyst 3550 Multilayer Switch Software Configuration Guide
22-50
Xmit Queue Mean
Peers Un/Reliable SRTT
1 0/0 1000
Chapter 22
Purpose
(Optional) Change the hello time interval for an EIGRP
routing process. The range is 1 to 65535 seconds. The
default is 60 seconds for low-speed NBMA networks and 5
seconds for all other networks.
(Optional) Change the hold time interval for an EIGRP
routing process. The range is 1 to 65535 seconds. The
default is 180 seconds for low-speed NBMA networks and
15 seconds for all other networks.
Caution Do not adjust the hold time without consulting
Cisco technical support.
to be advertised by a router out any interface from which that
information originated.
Return to privileged EXEC mode.
Display which interfaces EIGRP is active on and
information about EIGRP relating to those interfaces.
(Optional) Save your entries in the configuration file.
Pacing Time Multicast
Un/Reliable Flow Timer
0/10 0
Purpose
Enter global configuration mode.
Enter interface configuration mode, and specify the
Layer 3 interface to configure.
Enable MD5 authentication in IP EIGRP packets.
Enable authentication of IP EIGRP packets.
Return to global configuration mode.
Identify a key chain and enter key-chain configuration
mode. Match the name configured in Step 4.
Configuring IP Unicast Routing
Pending
Routes
0
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