3Com 4500 PWR 26-Port Configuration Manual page 699

Configuration procedure
Configure the SSH server
# Create a VLAN interface on the switch and assign an IP address, which the SSH client will use as the
destination for SSH connection.
<Switch> system-view
[Switch] interface vlan-interface 1
[Switch-Vlan-interface1] ip address 192.168.0.1 255.255.255.0
[Switch-Vlan-interface1] quit
Generating the RSA key pair on the server is prerequisite to SSH login.
# Generate RSA key pair.
[Switch] public-key local create rsa
# Set the authentication mode for the user interfaces to AAA.
[Switch] user-interface vty 0 4
[Switch-ui-vty0-4] authentication-mode scheme
# Enable the user interfaces to support SSH.
[Switch-ui-vty0-4] protocol inbound ssh
# Set the client's command privilege level to 3
[Switch-ui-vty0-4] user privilege level 3
[Switch-ui-vty0-4] quit
# Configure the authentication type of the SSH client named client 001 as publickey.
[Switch] ssh user client001 authentication-type publickey
Before performing the following steps, you must generate an RSA public key pair (using the client
software) on the client, save the key pair in a file named public, and then upload the file to the SSH
server through FTP or TFTP. For details, refer to the SSH client configuration part. .
# Import the client's public key named Switch001 from file public.
[Switch] public-key peer Switch001 import sshkey public
# Assign the public key Switch001 to client client001.
[Switch] ssh user client001 assign publickey Switch001
Configure the SSH client (taking PuTTY version 0.58 as an example)
# Generate an RSA key pair.
1) Run PuTTYGen.exe, choose SSH2(RSA) and click Generate.