Ssh; How Ssh Works - ZyXEL Communications NWA5121-N User Manual

When Authenticate Client Certificates is selected on the NWA, the following screen asks you to
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select a personal certificate to send to the NWA. This screen displays even if you only have a single
certificate as in the example.
You next see the Web Configurator login screen.
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13.5 SSH

You can use SSH (Secure SHell) to securely access the NWA's command line interface.
SSH is a secure communication protocol that combines authentication and data encryption to
provide secure encrypted communication between two hosts over an unsecured network. In the
following figure, computer B on the Internet uses SSH to securely connect to the NWA (A) for a
management session.
Figure 81 SSH Communication Over the WAN Example

13.5.1 How SSH Works

The following figure is an example of how a secure connection is established between two remote
hosts using SSH v1.
Chapter 13 System
NWA5120 Series User's Guide
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