Managing System Access Security Configurations
Configuration Guide
67
Step 4 ip ssh timeout
value
Specify the idle timeout time. The system will automatically release the connection when the
time is up.
value
: Enter the value of the timeout time, which ranges from 1 to 120 seconds. The default
value is 120 seconds.
Step 5 ip ssh max-client
num
Specify the maximum number of the connections to the SSH server. New connection will not
be established when the number of the connections reaches the maximum number you set.
num
: Enter the number of the connections, which ranges from 1 to 5. The default value is 5.
Step 6 ip ssh algorithm { AES128-CBC | AES192-CBC | AES256-CBC | Blowfish-CBC | Cast128-CBC |
3DES-CBC | HMAC-SHA1 | HMAC-MD5 }
Enable the corresponding algorithm. By default, these types are all enabled.
AES128-CBC | AES192-CBC | AES256-CBC | Blowfish-CBC | Cast128-CBC | 3DES-CBC:
Specify the encryption algorithm you want the switch supports.
HMAC-SHA1 | HMAC-MD5: Specify the data integrity algorithm you want the switch supports.
Step 7 ip ssh download { v1 | v2 }
key-file
ip-address
ip-addr
Select the type of the key file and download the desired file to the switch from TFTP server.
v1 | v2: Select the key type. The algorithm of the corresponding type is used for both key
generation and authentication.
key-file
: Specify the name of the key file saved in TFTP server. Ensure the key length of the
downloaded file is in the range of 512 to 3072 bits.
ip-addr
: Specify the IP address of the TFTP server. Both IPv4 and IPv6 addresses are
supported.
Step 8 show ip ssh
Verify the global configuration of SSH.
Step 9 end
Return to privileged EXEC mode.
Step 10 copy running-config startup-config
Save the settings in the configuration file.
Note:
It will take a long time to download the key file. Please wait without any operation.
The following example shows how to configure the SSH function. Set the version as SSH
V1 and SSH V2. Enable the AES128-CBC and Cast128-CBC encryption algorithm. Enable
the HMAC-MD5 data integrity algorithm. Choose the key type as SSH-2 RSA/DSA.
Switch(config)#ip ssh server
Switch(config)#ip ssh version v1
To Next Page
Loading...
Need help?
General