Config Cisco Nexus L3 vlan routing IPv4
This is a simple how to make a nexus switch L3 routeing and the connected access switches still on L2 switching. If you have a router connected between internet and the router switch. Make shure you have a static route configured to the two vlan network.
Router Switch
no system default interface-vlan autostate (brings up the vlan)
conf t
vlan 10 (creates vlan 10 L2)
name Servers vlan 10
exit
vlan 20 (creates vlan 20 L2)
name Servers vlan 20
exit
feature interface-vlan (Converts L2 vlan 10 to L3 vlan 10)
interface vlan 10
ip address 1.1.1.1/24
no ip redirects
exit
feature interface-vlan (Converts L2 vlan 20 to L3 vlan 20)
interface vlan 20
ip address 2.2.2.2/24
no ip redirects
exit
interface ethernet 1/1 (creates tagged vlan port to access sw1)
description To Access Sw1
switchport
switchport mode trunk
no shutdown
exit
interface ethernet 1/2 (creates tagegd vlan port to access sw1)
description to Access Sw2
switchport
switchport mode trunk
no shutdown
exit
interface ethernet 1/3 (Creates the link network port)
description to Internet
no switchport
ip address 3.3.3.1/30
no shutdown
exit
ip route 0.0.0.0 0.0.0.0 3.3.3.2 (makes default router to next hop router)
copy running-config startup-config
Access Sw1
conf t
vlan 10 (creates vlan 10 L2)
name Servers vlan 10
exit
vlan 20 (creates vlan 20 L2)
name Servers vlan 20
exit
interface ethernet 1/1 (creates tagged vlan port to Router switch)
description To Router Switch
switchport
switchport mode trunk
no shutdown
exit
interface ethernet 1/2 (creates untagged vlan 10 port to servers)
description Access vlan 10
switchport
switchport mode access vlan 10
no shutdown
exit
interface ethernet 1/3 (creates untagged vlan 20 port to servers)
description Access vlan 20
switchport
switchport mode access vlan 20
no shutdown
exit
copy running-config startup-config
Access Sw2
conf t
vlan 10 (creates vlan 10 L2)
name Servers vlan 10
exit
vlan 20 (creates vlan 10 L2)
name Servers vlan 20
exit
interface ethernet 1/1 (creates tagged vlan port to Router switch)
description To Router Switch
switchport
switchport mode trunk
no shutdown
exit
interface ethernet 1/2 (creates untagged vlan 10 port to servers)
description Access vlan 10
switchport
switchport mode access vlan 10
no shutdown
exit
interface ethernet 1/3 (creates untagged vlan 20 port to servers)
description Access vlan 20
switchport
switchport mode access vlan 20
no shutdown
exit
copy running-config startup-config