Configuration Example: Enable/Disable Ciphers in Default Mode

# show ssh2
SSH module configuration details:
SSH Access            : Disabled
Key validity          : Invalid
Key type              : RSA 2048
Key algorithm                :
  Current                    : rsa-sha2-256
  Configured                 : rsa-sha2-256
TCP port              : 22
VR                    : all
Access profile        : not set
Secure Mode           : Off
Diffie-Hellman Groups : 14 (2048 bits), 16 (4096 bits), 18 (8192 bits)
Max Auth Tries        : 3
Idle time             : 60 minutes
Rekey Interval        : 4096 MB and no time limit
Ciphers               : aes128-cbc, aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com
Macs                  : hmac-md5-etm@openssh.com, hmac-sha1-etm@openssh.com, hmac-sha2-256-etm@openssh.com, hmac-sha2-512-etm@openssh.com, hmac-sha1-96-etm@openssh.com, hmac-md5-96-etm@openssh.com, hmac-md5, hmac-sha1, hmac-sha2-256, hmac-sha2-512, hmac-sha1-96, hmac-md5-96
Public key algorithms : ssh-rsa, ssh-dss, x509v3-sign-rsa, x509v3-sign-dss
Login grace timeout : 100 seconds

# show ssh2 ciphers
Ciphers               : aes128-cbc, aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com

# configure ssh2 disable cipher aes128-cbc

 # show ssh2 ciphers
Ciphers               : aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com

# show ssh2
SSH module configuration details:
SSH Access            : Disabled
Key validity          : Invalid
Key type              : RSA 2048
Key algorithm                :
  Current                    : rsa-sha2-256
  Configured                 : rsa-sha2-256
TCP port              : 22
VR                    : all
Access profile        : not set
Secure Mode           : Off
Diffie-Hellman Groups : 14 (2048 bits), 16 (4096 bits), 18 (8192 bits)
Max Auth Tries        : 3
Idle time             : 60 minutes
Rekey Interval        : 4096 MB and no time limit
Ciphers               : aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com
Macs                  : hmac-md5-etm@openssh.com, hmac-sha1-etm@openssh.com, hmac-sha2-256-etm@openssh.com, hmac-sha2-512-etm@openssh.com, hmac-sha1-96-etm@openssh.com, hmac-md5-96-etm@openssh.com, hmac-md5, hmac-sha1, hmac-sha2-256, hmac-sha2-512, hmac-sha1-96, hmac-md5-96
Public key algorithms : ssh-rsa, ssh-dss, x509v3-sign-rsa, x509v3-sign-dss
Login grace timeout : 100 seconds

# configure ssh2 enable cipher aes128-cbc
Notice: The configured cipher(s), aes128-cbc, is/are weaker than what is recommended.

# show ssh2 ciphers
Ciphers               : aes128-cbc, aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com

# show ssh2
SSH module configuration details:
SSH Access            : Disabled
Key validity          : Invalid
Key type              : RSA 2048
Key algorithm                :
  Current                    : rsa-sha2-256
  Configured                 : rsa-sha2-256
TCP port              : 22
VR                    : all
Access profile        : not set
Secure Mode           : Off
Diffie-Hellman Groups : 14 (2048 bits), 16 (4096 bits), 18 (8192 bits)
Max Auth Tries        : 3
Idle time             : 60 minutes
Rekey Interval        : 4096 MB and no time limit
Ciphers               : aes128-cbc, aes192-cbc, aes256-cbc, rijndael-cbc@lysator.liu.se, aes128-ctr, aes192-ctr, aes256-ctr, chacha20-poly1305@openssh.com
Macs                  : hmac-md5-etm@openssh.com, hmac-sha1-etm@openssh.com, hmac-sha2-256-etm@openssh.com, hmac-sha2-512-etm@openssh.com, hmac-sha1-96-etm@openssh.com, hmac-md5-96-etm@openssh.com, hmac-md5, hmac-sha1, hmac-sha2-256, hmac-sha2-512, hmac-sha1-96, hmac-md5-96
Public key algorithms : ssh-rsa, ssh-dss, x509v3-sign-rsa, x509v3-sign-dss