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Alteon OS Application Guide
Chapter 1: Accessing the Switch
5542C4911, January 2007
Secure Shell and Secure Copy
Secure Shell (SSH) and Secure Copy (SCP) use secure tunnels to encrypt and secure messages
between a remote administrator and the switch. Telnet does not provide this level of security.
The Telnet method of managing a GbE Switch Module does not provide a secure connection.
SSH is a protocol that enables remote administrators to log securely into the GbE Switch Mod-
ule over a network to execute management commands.
SCP is typically used to copy files securely from one machine to another. SCP uses SSH for
encryption of data on the network. On a GbE Switch Module, SCP is used to download and
upload the switch configuration via secure channels.
The benefits of using SSH and SCP are listed below:
Authentication of remote administrators
Identifying the administrator using Name/Password
Authorization of remote administrators
Determining the permitted actions and customizing service for individual administrators
Encryption of management messages
Encrypting messages between the remote administrator and switch
Secure copy support
The Alteon OS implementation of SSH supports both versions 1.5 and 2.0. and supports SSH
clients version 1.5 - 2.x. The following SSH clients have been tested
SSH 1.2.23 and SSH 1.2.27 for Linux (freeware)
SecureCRT 3.0.2 and SecureCRT 3.0.3 for Windows NT (Van Dyke Technologies, Inc.)
F-Secure SSH 1.1 for Windows (Data Fellows)
Putty SSH
Cygwin OpenSSH
Mac X OpenSSH
Solaris 8 OpenSSH
AxeSSH SSHPro
SSH Communications Vandyke SSH A
F-Secure