Ssh; How Ssh Works; Figure 165 Common Zyxel Device Certificate; Figure 166 Ssh Communication Over The Wan Example - ZyXEL Communications NBG410W3G User Manual

Figure 165 Common ZyXEL Device Certificate

15.5 SSH

You can use SSH (Secure SHell) to securely access the ZyXEL Device's command line
interface. Specify which interfaces allow SSH access and from which IP address the access
can come.
Unlike Telnet or FTP, which transmit data in plaintext (clear or unencrypted text), 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 A on the Internet uses SSH to securely connect to the WAN port of
the ZyXEL Device for a management session.

Figure 166 SSH Communication Over the WAN Example

15.6 How SSH Works

The following table summarizes how a secure connection is established between two remote
hosts.
NBG410W3G Series User's Guide
SSH
Chapter 15 Remote Management
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