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Authentication Commands
4-137
4
Secure Shell Commands
This section describes the commands used to configure the SSH server. However,
note that you also need to install a SSH client on the management station when
using this protocol to configure the switch.
Note:
The switch supports both SSH Version 1.5 and 2.0.
Configuration Guidelines
The SSH server on this switch supports both password and public key
authentication. If password authentication is specified by the SSH client, then the
password can be authenticated either locally or via a RADIUS or remote
authentication server, as specified by the
authentication login
command on
page 4-114. If public key authentication is specified by the client, then you must
configure authentication keys on both the client and the switch as described in the
following section. Note that regardless of whether you use public key or password
authentication, you still have to generate authentication keys on the switch and
enable the SSH server.
To use the SSH server, complete these steps:
1.
Generate a Host Key Pair – Use the
ip ssh crypto host-key generate
command to create a host public/private key pair.
2.
Provide Host Public Key to Clients – Many SSH client programs automatically
import the host public key during the initial connection setup with the switch.
Table 4-37 SSH Commands
Command
Function
Mode
Page
ip ssh server
Enables the SSH server on the switch
GC
4-139
ip ssh timeout
Specifies the authentication timeout for the SSH server
GC
4-140
ip ssh
authentication-retries
Specifies the number of retries allowed by a client
GC
4-140
ip ssh server-key size Sets the SSH server key size
GC
4-141
copy tftp public-key
Copies the user’s public key from a TFTP server to the switch PE
4-37
delete public-key
Deletes the public key for the specified user
PE
4-141
ip ssh crypto host-key
generate
Generates the host key
PE
4-142
ip ssh crypto zeroize
Clear the host key from RAM
PE
4-142
ip ssh save host-key
Saves the host key from RAM to flash memory
PE
4-143
disconnect
Terminates a line connection
PE
4-55
show ip ssh
Displays the status of the SSH server and the configured values
for authentication timeout and retries
PE
4-143
show ssh
Displays the status of current SSH sessions
PE
4-144
show public-key
Shows the public key for the specified user or for the host
PE
4-145
show users
Shows SSH users, including privilege level and public key type PE
4-33
Summary of Contents for 6152PL2 FICHE
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Page 32: ...Tables xxxii ...
Page 38: ...Figures xxxviii ...
Page 56: ...Initial Configuration 2 10 2 ...
Page 378: ...Configuring the Switch 3 322 3 ...
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