Nexus 5000 SSH Configuration Example [Step by Step]
Requirement: Enable connectivity to Nexus switch
Connectivity to the switch mgmt interface should be established:
– Via mgmt0 interface
– Via the SVI interface
- Via mgmt0 interface:
The mgmt0 interface on Cisco NX-OS devices provides out-of-band management, which enables you to manage the device by its IPv4 or IPv6 address. The mgmt0 interface uses 10/100/1000 Ethernet.
configure terminal
interface mgmt 0
ip address 192.168.50.10 255.255.255.0
no shutdown
exit
vrf context management
ip route 0.0.0.0/0 192.168.50.254- Via SVI interface:
vlan 50
interface Ethernet1/32
switchport access vlan 50
speed 1000
duplex full
feature interface-vlan
interface vlan 50
ip address 192.168.50.10 255.255.255.0
no shutdown
exit
vrf context default
ip route 0.0.0.0/0 192.168.50.254Step-1: Enable the SSH feature:
switch_N5K# configure terminal
switch_N5K#(config)# feature ssh
Step-2: Generate RSA Key:
switch_N5K#(config)# ssh key rsa 2048
switch_N5K#(config)# exit
switch_N5K# show ssh key
switch_N5K# copy running-config startup-configExample of show SSH key:
switch_N5K#(config)# show ssh key
rsa Keys generated:Sun May 8 10:02:12 2022
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAri3mQy4W1AV9Y2t2hrEWgbUEYzCfTPO5B8LRkedn56BEy2N9ZcdpqE6aqJLZwfZ/
cTFEzaAAZp9AS86dgBAjsKGs7UxnhGySr8ZELv+DQBsDQH6rZt0KR+2Da8hJD4ZXIeccWk0gS1DQUNZ300xstQsYZUtqnx1bvm5/
Ninn0Mc=Step-3: Specify the SSH public key in Open SSH format:
switch_N5K#(config)# username User1 sshkey ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAri3mQy4W1AV9Y2t2hrEWgbUEYz
CfTPO5B8LRkedn56BEy2N9ZcdpqE6aqJLZwfZcTFEzaAAZp9AS86dgBAjsKGs7UxnhGySr8ZELv+DQBsDQH6rZt0KR+2Da8hJD4Z
XIeccWk0gS1DQUNZ300xstQsYZUtqnx1bvm5Ninn0McNinn0Mc=Step-4: Save configuration:
switch_N5K(config)# copy running-config startup-config