Ssh Implementation On The Zyxel Device; Requirements For Using Ssh; Configuring Ssh - ZyXEL Communications NWA Seres User Manual

17.6.2 SSH Implementation on the Zyxel Device

Your Zyxel Device supports SSH versions 1 and 2 using RSA authentication and four encryption methods
(AES, 3DES, Archfour, and Blowfish). The SSH server is implemented on the Zyxel Device for management
using port 22 (by default).

17.6.3 Requirements for Using SSH

You must install an SSH client program on a client computer (Windows or Linux operating system) that is
used to connect to the Zyxel Device over SSH.

17.6.4 Configuring SSH

Click Configuration > System > SSH to open the following screen. Use this screen to configure your Zyxel
Device's Secure Shell settings.
Note: It is recommended that you disable Telnet and FTP when you configure SSH for secure
connections.
Figure 113 Configuration > System > SSH
The following table describes the labels in this screen.
Table 80 Configuration > System > SSH
LABEL
Enable
Version 1
Server Port
Server Certificate
Apply
Reset
Chapter 17 System
DESCRIPTION
Select the check box to allow or disallow the computer with the IP address that matches the IP
address(es) in the Service Control table to access the Zyxel Device CLI using this service.
Note: The Zyxel Device uses only SSH version 2 protocol.
Select the check box to have the Zyxel Device use both SSH version 1 and version 2 protocols. If
you clear the check box, the Zyxel Device uses only SSH version 2 protocol.
You may change the server port number for a service if needed, however you must use the
same port number in order to use that service for remote management.
Select the certificate whose corresponding private key is to be used to identify the Zyxel Device
for SSH connections. You must have certificates already configured in the My Certificates
screen.
Click Apply to save your changes back to the Zyxel Device.
Click Reset to return the screen to its last-saved settings.
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