When configuring SSH2.0, go to these sections for information you are interested in:
Configuring the Device as an SSH Server
Configuring the Device as an SSH Client
Displaying and Maintaining SSH
SSH Server Configuration Examples
SSH Client Configuration Examples
Introduction to SSH2.0
Secure Shell (SSH) offers an approach to securely logging into a remote device. By encryption and
strong authentication, it protects devices against attacks such as IP spoofing and plain text password
The device can not only work as an SSH server to support connections with SSH clients, but also work
as an SSH client to allow users to establish SSH connections with a remote device acting as the SSH
Currently, when acting as an SSH server, the device supports two SSH versions: SSH2.0 and SSH1.
When acting as an SSH client, the device supports SSH2.0 only.
Operation of SSH
The session establishment and interaction between an SSH client and the SSH server involves the
following five stages:
Table 1-1 Stages in session establishment and interaction between an SSH client and the server
Key and algorithm negotiation
SSH1 and SSH2.0 are supported. The two parties negotiate a version
SSH supports multiple algorithms. The two parties negotiate an
algorithm for communication.
The SSH server authenticates the client in response to the client's
After passing authentication, the client sends a session request to the