H3C Technologies H3C S3100 Series Switches - Manual (Page 754)

1-41
When Switch Acts as Client and First-Time Authentication is not Supported
Network requirements
As shown in Figure 1-31 , establish an SSH connection between Switch A (SSH Client) and Switch B
(SSH Server) for secure data exchange. The user name is client001 and the SSH server’s IP address is
10.165.87.136. The publickey authentication mode is used to enhance security.
Network diagram
Figure 1-31 Switch acts as client and first-time authentication is not supported
Configuration procedure
z Configure Switch B
# Create a VLAN interface on the switch and assign an IP address for it to serve as the destination of
the client.
<SwitchB> system-view
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ip address 10.165.87.136 255.255.255.0
[SwitchB-Vlan-interface1] quit
Generating the RSA and DSA key pairs on the server is prerequisite to SSH login.
# Generate RSA and DSA key pairs.
[SwitchB] public-key local create rsa
[SwitchB] public-key local create dsa
# Set AAA authentication on user interfaces.
[SwitchB] user-interface vty 0 4
[SwitchB-ui-vty0-4] authentication-mode scheme
# Configure the user interfaces to support SSH.
[SwitchB-ui-vty0-4] protocol inbound ssh
# Set the user command privilege level to 3.
[SwitchB-ui-vty0-4] user privilege level 3
[SwitchB-ui-vty0-4] quit
# Specify the authentication type for user client001 as publickey.
[SwitchB] ssh user client001 authentication-type publickey