3Com 4500G Family Configuration Manual page 691

# Create an IP address for VLAN interface 1, which the SSH client will use as the destination for SSH
connection.
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ip address 10.165.87.136 255.255.255.0
[SwitchB-Vlan-interface1] quit
# Set the authentication mode for the user interfaces to AAA.
[SwitchB] user-interface vty 0 4
[SwitchB-ui-vty0-4] authentication-mode scheme
# Enable the user interfaces to support SSH.
[SwitchB-ui-vty0-4] protocol inbound ssh
[SwitchB-ui-vty0-4] quit
# Create local user client001.
[SwitchB] local-user client001
[SwitchB-luser-client001] password simple aabbcc
[SwitchB-luser-client001] service-type ssh
[SwitchB-luser-client001] authorization-attribute level 3
[SwitchB-luser-client001] quit
# Specify the service type for user client001 as Stelnet, and the authentication type as password. This
step is optional.
[SwitchB] ssh user client001 service-type stelnet authentication-type password
2) Establish a connection between the SSH client and the SSH server
# Configure an IP address for VLAN interface 1.
<SwitchA> system-view
[SwitchA] interface vlan-interface 1
[SwitchA-Vlan-interface1] ip address 10.165.87.137 255.255.255.0
[SwitchA-Vlan-interface1] quit
[SwitchA] quit
If the client support first-time authentication, you can directly establish a connection from the client
to the server.
# Establish an SSH connection to server 10.165.87.136.
<SwitchA> ssh2 10.165.87.136
Username: client001
Trying 10.165.87.136 ...
Press CTRL+K to abort
Connected to 10.165.87.136 ...
The Server is not authenticated. Continue? [Y/N]:y
Do you want to save the server public key? [Y/N]:n
Enter password:
After you enter the correct username, you can log into Switch B successfully.
If the client does not support first-time authentication, you need to perform the following
configurations.
# Disable first-time authentication.
[SwitchA] undo ssh client first-time
# Configure the host public key of the SSH server. You can get the server host public key by using the
display public-key local dsa public command on the server.
[SwitchA] public-key peer key1
[SwitchA-pkey-public-key] public-key-code begin
[SwitchA-pkey-key-code]308201B73082012C06072A8648CE3804013082011F0281810
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