Reference Guide
Password Authentication : enabled.
Hostbased Authentication : disabled.
RSA Authentication : disabled.
 Vty Encryption HMAC Remote IP
 1 3des-cbc hmac-md5 10.1.20.48
 2 3des-cbc hmac-md5 10.1.20.48
With FIPS Mode enabled:
FTOS #show ip ssh
SSH server : enabled.
SSH server version : v2.
Password Authentication : enabled.
Hostbased Authentication : disabled.
RSA Authentication : disabled.
 Vty Encryption HMAC Remote IP
 0 aes128-cbc hmac-sha1 10.11.8.13
 1 aes128-cbc hmac-sha1 10.1.20.48
ssh
Open an SSH connection specifying the hostname, username, port number, and version of the SSH client.
S4820T
Syntax ssh {hostname|ipv4 address|ipv6 address} [-c encryption cipher|-l 
username|-m HMAC alogorithm|-p port-number|-v {1|2}]
Parameters
hostname (OPTIONAL) Enter the IP address or the hostname of the remote 
device.
ipv4 address (OPTIONAL) Enter the IP address in dotted decimal format A.B.C.D.
ipv6 
addressprefix
(OPTIONAL) Enter the IPv6 address in the x:x:x:x::x format then the 
prefix length in the /x format. The range is from /0 to /128
NOTE: The :: notation specifies successive hexadecimal fields of 
zeros.
-c encryption 
cipher
Enter the following encryption cipher to use. (For v2 clients only.) 
Without the FIPS mode enabled:
• 3des-cbc: Force ssh to use 3des-cbc encryption cipher.
With the FIPS mode enabled:
• aes128–cbc: Force ssh to use the aes128–cbc encryption 
cipher.
• aes256–cbc: Force ssh to use the aes256–cbc encryption 
cipher.
-l username (OPTIONAL) Enter the keyword —l then the user name used in this 
SSH session. The default is the user name of the user associated with 
the terminal.
489










