Configuring Eigrp Route Authentication - Cisco Catalyst 9500 series Configuration Manual
Cisco ios xe everest 16.6.x
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Also See for Catalyst 9500 series:
- Manual (360 pages) ,
- Hardware installation manual (122 pages) ,
- Troubleshooting (4 pages)
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Configuring IP Unicast Routing
Configuring 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.
Procedure
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Command or Action
configure terminal
Example:
Device# configure terminal
interface interface-id
Example:
Device(config)# interface
gigabitethernet 1/0/1
ip authentication mode eigrp
autonomous-system md5
Example:
Device(config-if)# ip authentication
mode eigrp 104 md5
ip authentication key-chain eigrp
autonomous-system key-chain
Example:
Device(config-if)# ip authentication
key-chain eigrp 105 chain1
exit
Example:
Device(config-if)# exit
key chain name-of-chain
Example:
Device(config)# key chain chain1
key number
Example:
Device(config-keychain)# key 1
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
Configuring EIGRP Route Authentication
Purpose
Enters the global configuration mode.
Enters interface configuration mode, and specifies
the Layer 3 interface to configure.
Enables MD5 authentication in IP EIGRP packets.
Enables authentication of IP EIGRP packets.
Returns to global configuration mode.
Identify a key chain and enter key-chain
configuration mode. Match the name configured
in Step 4.
In key-chain configuration mode, identify the key
number.
113
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