Cisco Nexus 3000 series - Page 117

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4-15
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, NX-OS Release5.0(3)U1(1)
Chapter 4 Configuring EIGRP
Configuring Advanced EIGRP
DETAILED STEPS
Command Purpose
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Enters configuration mode.
Step 2
router eigrp instance-tag
Example:
switch(config)# router eigrp Test1
switch(config-router)#
Creates a new EIGRP process with the configured
instance tag. The instance tag can be any
case-sensitive, alphanumeric string up to 20
characters.
If you configure an instance-tag that does not qualify
as an AS number, you must use the
autonomous-system command to configure the AS
number explicitly or this EIGRP instance will remain
in the shutdown state.
Step 3
address-family ipv4 unicast
Example:
switch(config-router)# address-family
ipv4 unicast
switch(config-router-af)#
Enters the address-family configuration mode. This
command is optional for IPv4.
Step 4
authentication key-chain key-chain
Example:
switch(config-router-af)# authentication
key-chain routeKeys
Associates a key chain with this EIGRP process for
this VRF. The key chain can be any case-sensitive,
alphanumeric string up to 20 characters.
Step 5
authentication mode md5
Example:
switch(config-router-af)# authentication
mode md5
Configures MD5 message digest authentication mode
for this VRF.
Step 6
interface interface-type slot/port
Example:
switch(config-router-af) interface
ethernet 1/2
switch(config-if)#
Enters interface configuration mode. Use ? to find the
supported interfaces.
Step 7
no switchport
Example:
switch(config-if)# no switchport
Configures the interface as a Layer 3 routed interface.
Step 8
ip router eigrp instance-tag
Example:
switch(config-if)# ip router eigrp Test1
Associates this interface with the configured EIGRP
process. The instance tag can be any case-sensitive,
alphanumeric string up to 20 characters.
Step 9
ip authentication key-chain eigrp
instance-tag key-chain
Example:
switch(config-if)# ip authentication
key-chain eigrp Test1 routeKeys
Associates a key chain with this EIGRP process for
this interface. This configuration overrides the
authentication configuration set in the router VRF
mode.
The instance tag can be any case-sensitive,
alphanumeric string up to 20 characters.