Allied Telesis AT-S60 - Manual (Page 532)

Chapter 26: Secure Shell (SSH)
Section V: Security Features 532
SSH Clients The SSH protocol provides a secure connection between the switch and
SSH clients. Once you have configured the SSH server, you need to install
SSH client software on your management PC. The AT-S60 software
supports both SSH1 and SSH2 clients.
You can download client software from the Internet. Two popular SSH
clients are PuTTY and CYGWIN. To install SSH client software, follow the
directions from the vendor.
Once you have configured the SSH client software, you can use the client
software to login to the SSH server as a manager, operator, or as
RADIUS/TACACS+ users. The SSH server supports multiple client
connections. The maximum number of SSH clients allowed is 10 users
with one manager login.
SSH and
Enhanced
Stacking
The AT-S60 management software allows for encrypted SSH
management sessions between a management workstation and a
master switch of an enhanced stack, but not with slave switches, as
explained in this section.
When you remotely manage a slave switch, all management
communications are conducted through the master switch using the
enhanced stacking feature. Management packets from your workstation
are first directed to the master switch before being forwarded to the
slave switch. The reverse is true as well. Management packets from a
slave switch first pass through the master switch before reaching your
management workstation.
Enhanced stacking uses a proprietary protocol that does not provide for
encryption between a master switch and a slave switch. The result is that
SSH encryption only occurs between your workstation and the master
switch, not between your workstation and a slave switch.