Allied Telesis AT-S63 - Manual (Page 482)

Chapter 40: Secure Shell (SSH)
482 Section IX: Management Security
Support for SSH
The AT-S63 implementation of the SSH protocol is compliant with the
SSH protocol versions 1.3, 1.5, and 2.0.
In addition, the following SSH options and features are supported:
 Inbound SSH connections (server mode) is supported.
 The following security algorithms are supported:
– 128-bit Advanced Encryption Standard (AES),
192-bit AES, and 256-bit AES
– Arcfour (RC4) security algorithm is supported.
– Triple-DES (3DES) encryption for SSH sessions is
supported.
 RSA public keys with lengths of 512 to 2048 bits are supported. Keys
are stored in a format compatible with other Secure Shell
implementations, and mechanisms are provided to copy keys to and
from the switch.
 Compression of SSH traffic.
The following SSH options and features are not supported:
 IDEA or Blowfish encryption
 Nonencrypted Secure Shell sessions
 Tunnelling of TCP/IP traffic
Note
Non-encrypted Secure Shell sessions serve no purpose.