Cisco Nexus 3548

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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
authentication key-chain (EIGRP)
authentication key-chain (EIGRP)
To enable authentication for the Enhanced Interior Gateway Routing Protocol (EIGRP) packets and to
specify the set of keys that can be used on an interface
, use the authentication key-chain command. To
prevent authentication, use the no form of this command.
authentication key-chain name-of-chain
no authentication key-chain name-of-chain
Syntax Description
Command Default No authentication is provided for EIGRP packets.
Command Modes Router configuration mode
Address family configuration mode
Router VRF configuration mode
Command History
Usage Guidelines Set the authentication mode using the authentication mode command in VRF configuration mode. You
must separately configure a key chain using the key-chain command to complete the authentication
configuration for an interface.
This command requires the LAN Base Services license.
Examples This example shows how to configure the interface to accept and send any key that belongs to the
key-chain trees:
switch# configure terminal
switch(config)# router eigrp 209
switch(config-router)# vrf red
switch(config-router-vrf)# authentication key-chain trees
switch(config-router-vrf)#
Related Commands
name-of-chain Group of keys that are valid.
Release Modification
5.0(3)A1(1) This command was introduced.
Command Description
authentication mode
(EIGRP)
Sets the authentication mode for EIGRP in a VRF.
ip authentication
key-chain eigrp
Enables authentication for EIGRP and specifies the set of keys that can be
used on an interface.